We are working to restore the Unionpedia app on the Google Play Store
OutgoingIncoming
🌟We've simplified our design for better navigation!
Instagram Facebook X LinkedIn

Gas

Index Gas

Gas is one of the four fundamental states of matter. [1]

Table of Contents

  1. 157 relations: Absolute zero, Alchemy, Algebra, Amedeo Avogadro, Amount of substance, Ancient Greek, Argon, Atmosphere of Earth, Atmospheric entry, Atom, Avogadro constant, Bose gas, Breathing gas, Canonical ensemble, Carbon dioxide, Chemical compound, Chemical element, Chemical polarity, Chlorine, Collision, Compressibility, Compressibility factor, Compressible flow, Conservation law, Covalent bond, Degrees of freedom (physics and chemistry), Delta wing, Density, Diatomic molecule, Diffusion, Dissociation (chemistry), Dutch language, Elastic collision, Elementary reaction, Endothermic process, Ensemble (mathematical physics), Entropy, Equation of state, Equipartition theorem, Exchange interaction, Exhaust gas, Fermentation, Fermi gas, Flemish people, Fluorine, Gas constant, Grand canonical ensemble, Greenhouse gas, Halogen, Hard spheres, ... Expand index (107 more) »

Absolute zero

Absolute zero is the lowest limit of the thermodynamic temperature scale; a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin.

See Gas and Absolute zero

Alchemy

Alchemy (from Arabic: al-kīmiyā; from Ancient Greek: χυμεία, khumeía) is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practised in China, India, the Muslim world, and Europe.

See Gas and Alchemy

Algebra

Algebra is the branch of mathematics that studies algebraic structures and the manipulation of statements within those structures.

See Gas and Algebra

Amedeo Avogadro

Lorenzo Romano Amedeo Carlo Avogadro, Count of Quaregna and Cerreto (also,; 9 August 17769 July 1856) was an Italian scientist, most noted for his contribution to molecular theory now known as Avogadro's law, which states that equal volumes of gases under the same conditions of temperature and pressure will contain equal numbers of molecules.

See Gas and Amedeo Avogadro

Amount of substance

In chemistry, the amount of substance (symbol n) in a given sample of matter is defined as a ratio between the number of elementary entities (N) and the Avogadro constant (NA).

See Gas and Amount of substance

Ancient Greek

Ancient Greek (Ἑλληνῐκή) includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC.

See Gas and Ancient Greek

Argon

Argon is a chemical element; it has symbol Ar and atomic number 18.

See Gas and Argon

Atmosphere of Earth

The atmosphere of Earth is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes), all retained by Earth's gravity.

See Gas and Atmosphere of Earth

Atmospheric entry

Atmospheric entry (sometimes listed as Vimpact or Ventry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite.

See Gas and Atmospheric entry

Atom

Atoms are the basic particles of the chemical elements.

See Gas and Atom

Avogadro constant

The Avogadro constant, commonly denoted or, is an SI defining constant with an exact value of (reciprocal moles).

See Gas and Avogadro constant

Bose gas

An ideal Bose gas is a quantum-mechanical phase of matter, analogous to a classical ideal gas.

See Gas and Bose gas

Breathing gas

A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration.

See Gas and Breathing gas

Canonical ensemble

In statistical mechanics, a canonical ensemble is the statistical ensemble that represents the possible states of a mechanical system in thermal equilibrium with a heat bath at a fixed temperature.

See Gas and Canonical ensemble

Carbon dioxide

Carbon dioxide is a chemical compound with the chemical formula.

See Gas and Carbon dioxide

Chemical compound

A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds.

See Gas and Chemical compound

Chemical element

A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions.

See Gas and Chemical element

Chemical polarity

In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.

See Gas and Chemical polarity

Chlorine

Chlorine is a chemical element; it has symbol Cl and atomic number 17.

See Gas and Chlorine

Collision

In physics, a collision is any event in which two or more bodies exert forces on each other in a relatively short time.

See Gas and Collision

Compressibility

In thermodynamics and fluid mechanics, the compressibility (also known as the coefficient of compressibility or, if the temperature is held constant, the isothermal compressibility) is a measure of the instantaneous relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.

See Gas and Compressibility

Compressibility factor

In thermodynamics, the compressibility factor (Z), also known as the compression factor or the gas deviation factor, describes the deviation of a real gas from ideal gas behaviour.

See Gas and Compressibility factor

Compressible flow

Compressible flow (or gas dynamics) is the branch of fluid mechanics that deals with flows having significant changes in fluid density.

See Gas and Compressible flow

Conservation law

In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves over time.

See Gas and Conservation law

Covalent bond

A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.

See Gas and Covalent bond

Degrees of freedom (physics and chemistry)

In physics and chemistry, a degree of freedom is an independent physical parameter in the formal description of the state of a physical system.

See Gas and Degrees of freedom (physics and chemistry)

Delta wing

A delta wing is a wing shaped in the form of a triangle.

See Gas and Delta wing

Density

Density (volumetric mass density or specific mass) is a substance's mass per unit of volume.

See Gas and Density

Diatomic molecule

Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements.

See Gas and Diatomic molecule

Diffusion

Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration.

See Gas and Diffusion

Dissociation (chemistry)

Dissociation in chemistry is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into other things such as atoms, ions, or radicals, usually in a reversible manner.

See Gas and Dissociation (chemistry)

Dutch language

Dutch (Nederlands.) is a West Germanic language, spoken by about 25 million people as a first language and 5 million as a second language and is the third most spoken Germanic language.

See Gas and Dutch language

Elastic collision

In physics, an elastic collision is an encounter (collision) between two bodies in which the total kinetic energy of the two bodies remains the same.

See Gas and Elastic collision

Elementary reaction

An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state.

See Gas and Elementary reaction

Endothermic process

An endothermic process is a chemical or physical process that absorbs heat from its surroundings.

See Gas and Endothermic process

Ensemble (mathematical physics)

In physics, specifically statistical mechanics, an ensemble (also statistical ensemble) is an idealization consisting of a large number of virtual copies (sometimes infinitely many) of a system, considered all at once, each of which represents a possible state that the real system might be in.

See Gas and Ensemble (mathematical physics)

Entropy

Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty.

See Gas and Entropy

Equation of state

In physics and chemistry, an equation of state is a thermodynamic equation relating state variables, which describe the state of matter under a given set of physical conditions, such as pressure, volume, temperature, or internal energy.

See Gas and Equation of state

Equipartition theorem

In classical statistical mechanics, the equipartition theorem relates the temperature of a system to its average energies.

See Gas and Equipartition theorem

Exchange interaction

In chemistry and physics, the exchange interaction is a quantum mechanical constraint on the states of indistinguishable particles.

See Gas and Exchange interaction

Exhaust gas

Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, or coal. Gas and Exhaust gas are gases.

See Gas and Exhaust gas

Fermentation

Fermentation is a metabolic process that produces chemical changes in organic substances through the action of enzymes.

See Gas and Fermentation

Fermi gas

A Fermi gas is an idealized model, an ensemble of many non-interacting fermions. Gas and fermi gas are phases of matter.

See Gas and Fermi gas

Flemish people

Flemish people or Flemings (Vlamingen) are a Germanic ethnic group native to Flanders, Belgium, who speak Flemish Dutch.

See Gas and Flemish people

Fluorine

Fluorine is a chemical element; it has symbol F and atomic number 9.

See Gas and Fluorine

Gas constant

The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is denoted by the symbol or.

See Gas and Gas constant

Grand canonical ensemble

In statistical mechanics, the grand canonical ensemble (also known as the macrocanonical ensemble) is the statistical ensemble that is used to represent the possible states of a mechanical system of particles that are in thermodynamic equilibrium (thermal and chemical) with a reservoir.

See Gas and Grand canonical ensemble

Greenhouse gas

Greenhouse gases (GHGs) are the gases in the atmosphere that raise the surface temperature of planets such as the Earth.

See Gas and Greenhouse gas

Halogen

|- ! colspan.

See Gas and Halogen

Hard spheres

Hard spheres are widely used as model particles in the statistical mechanical theory of fluids and solids.

See Gas and Hard spheres

Heat capacity

Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to an object to produce a unit change in its temperature.

See Gas and Heat capacity

Heat capacity ratio

In thermal physics and thermodynamics, the heat capacity ratio, also known as the adiabatic index, the ratio of specific heats, or Laplace's coefficient, is the ratio of the heat capacity at constant pressure to heat capacity at constant volume.

See Gas and Heat capacity ratio

Helium

Helium (from lit) is a chemical element; it has symbol He and atomic number 2.

See Gas and Helium

Homonuclear molecule

In chemistry, homonuclear molecules, or homonuclear species, are molecules composed of only one element.

See Gas and Homonuclear molecule

Hydrogen

Hydrogen is a chemical element; it has symbol H and atomic number 1.

See Gas and Hydrogen

Hydrostatics

Fluid statics or hydrostatics is the branch of fluid mechanics that studies fluids at hydrostatic equilibrium and "the pressure in a fluid or exerted by a fluid on an immersed body".

See Gas and Hydrostatics

Ideal gas

An ideal gas is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interactions. Gas and ideal gas are gases.

See Gas and Ideal gas

Ideal gas law

The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas.

See Gas and Ideal gas law

Incompressible flow

In fluid mechanics, or more generally continuum mechanics, incompressible flow (isochoric flow) refers to a flow in which the material density of each fluid parcel — an infinitesimal volume that moves with the flow velocity — is time-invariant.

See Gas and Incompressible flow

Inert gas

An inert gas is a gas that does not readily undergo chemical reactions with other chemical substances and therefore does not readily form chemical compounds. Gas and inert gas are gases.

See Gas and Inert gas

Intensive and extensive properties

Physical or chemical properties of materials and systems can often be categorized as being either intensive or extensive, according to how the property changes when the size (or extent) of the system changes.

See Gas and Intensive and extensive properties

Interatomic potential

Interatomic potentials are mathematical functions to calculate the potential energy of a system of atoms with given positions in space.

See Gas and Interatomic potential

Intermolecular force

An intermolecular force (IMF) (or secondary force) is the force that mediates interaction between molecules, including the electromagnetic forces of attraction or repulsion which act between atoms and other types of neighbouring particles, e.g. atoms or ions.

See Gas and Intermolecular force

Internal energy

The internal energy of a thermodynamic system is the energy contained within it, measured as the quantity of energy necessary to bring the system from its standard internal state to its present internal state of interest, accounting for the gains and losses of energy due to changes in its internal state, including such quantities as magnetization.

See Gas and Internal energy

Ion

An ion is an atom or molecule with a net electrical charge.

See Gas and Ion

Jacques Barzun

Jacques Martin Barzun (November 30, 1907 – October 25, 2012) was a French-born American historian known for his studies of the history of ideas and cultural history.

See Gas and Jacques Barzun

Jacques Charles

Jacques Alexandre César Charles (12 November 1746 – 7 April 1823) was a French inventor, scientist, mathematician, and balloonist.

See Gas and Jacques Charles

Jet engine

A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion.

See Gas and Jet engine

John Dalton

John Dalton (5 or 6 September 1766 – 27 July 1844) was an English chemist, physicist and meteorologist.

See Gas and John Dalton

Joseph Louis Gay-Lussac

Joseph Louis Gay-Lussac (6 December 1778 – 9 May 1850) was a French chemist and physicist.

See Gas and Joseph Louis Gay-Lussac

Kelvin

The kelvin, symbol K, is the base unit of measurement for temperature in the International System of Units (SI).

See Gas and Kelvin

Kinetic energy

In physics, the kinetic energy of an object is the form of energy that it possesses due to its motion.

See Gas and Kinetic energy

Krypton

Krypton (from translit 'the hidden one') is a chemical element; it has symbol Kr and atomic number 36.

See Gas and Krypton

Length scale

In physics, length scale is a particular length or distance determined with the precision of at most a few orders of magnitude.

See Gas and Length scale

Lennard-Jones potential

In computational chemistry, molecular physics, and physical chemistry, the Lennard-Jones potential (also termed the LJ potential or 12-6 potential; named for John Lennard-Jones) is an intermolecular pair potential.

See Gas and Lennard-Jones potential

Liquid

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure. Gas and liquid are phases of matter.

See Gas and Liquid

List of gases

This is a list of gases at standard conditions, which means substances that boil or sublime at or below and 1 atm pressure and are reasonably stable. Gas and list of gases are gases.

See Gas and List of gases

List of refractive indices

Many materials have a well-characterized refractive index, but these indices often depend strongly upon the frequency of light, causing optical dispersion.

See Gas and List of refractive indices

List of states of matter

Matter organizes into various phases or states of matter depending on its constituents and external factors like pressure and temperature. Gas and List of states of matter are phases of matter.

See Gas and List of states of matter

List of things named after Leonhard Euler

In mathematics and physics, many topics are named in honor of Swiss mathematician Leonhard Euler (1707–1783), who made many important discoveries and innovations.

See Gas and List of things named after Leonhard Euler

Loch

Loch is a word meaning "lake" or "sea inlet" in Scottish and Irish Gaelic, subsequently borrowed into English.

See Gas and Loch

London dispersion force

London dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces, fluctuating induced dipole bonds or loosely as van der Waals forces) are a type of intermolecular force acting between atoms and molecules that are normally electrically symmetric; that is, the electrons are symmetrically distributed with respect to the nucleus.

See Gas and London dispersion force

Macroscopic scale

The macroscopic scale is the length scale on which objects or phenomena are large enough to be visible with the naked eye, without magnifying optical instruments.

See Gas and Macroscopic scale

Mass flow rate

In physics and engineering, mass flow rate is the mass of a substance which passes per unit of time.

See Gas and Mass flow rate

Maxwell–Boltzmann distribution

In physics (in particular in statistical mechanics), the Maxwell–Boltzmann distribution, or Maxwell(ian) distribution, is a particular probability distribution named after James Clerk Maxwell and Ludwig Boltzmann. Gas and Maxwell–Boltzmann distribution are gases.

See Gas and Maxwell–Boltzmann distribution

Mercury (element)

Mercury is a chemical element; it has symbol Hg and atomic number 80.

See Gas and Mercury (element)

Michael Faraday

Michael Faraday (22 September 1791 – 25 August 1867) was an English scientist who contributed to the study of electromagnetism and electrochemistry.

See Gas and Michael Faraday

Microcanonical ensemble

In statistical mechanics, the microcanonical ensemble is a statistical ensemble that represents the possible states of a mechanical system whose total energy is exactly specified.

See Gas and Microcanonical ensemble

Microscopic scale

The microscopic scale is the scale of objects and events smaller than those that can easily be seen by the naked eye, requiring a lens or microscope to see them clearly.

See Gas and Microscopic scale

Microstate

A microstate or ministate is a sovereign state having a very small population or land area, usually both.

See Gas and Microstate

Microstate (statistical mechanics)

In statistical mechanics, a microstate is a specific configuration of a system that describes the precise positions and momenta of all the individual particles or components that make up the system.

See Gas and Microstate (statistical mechanics)

Mixture

A mixture is a material made up of two or more different chemical substances which can be separated by physical method.

See Gas and Mixture

Molar heat capacity

The molar heat capacity of a chemical substance is the amount of energy that must be added, in the form of heat, to one mole of the substance in order to cause an increase of one unit in its temperature.

See Gas and Molar heat capacity

Molar volume

In chemistry and related fields, the molar volume, symbol Vm, or \tilde V of a substance is the ratio of the volume (V) occupied by a substance to the amount of substance (n): Vm.

See Gas and Molar volume

Mole (unit)

The mole (symbol mol) is a unit of measurement, the base unit in the International System of Units (SI) for amount of substance, a quantity proportional to the number of elementary entities of a substance.

See Gas and Mole (unit)

Molecular vibration

A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged.

See Gas and Molecular vibration

Molecule

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.

See Gas and Molecule

Momentum

In Newtonian mechanics, momentum (momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object.

See Gas and Momentum

Monatomic gas

In physics and chemistry, "monatomic" is a combination of the words "mono" and "atomic", and means "single atom". Gas and Monatomic gas are gases.

See Gas and Monatomic gas

Mount Redoubt

Redoubt Volcano, or Mount Redoubt (Dena'ina: Bentuggezh K’enulgheli), is an active stratovolcano in the largely volcanic Aleutian Range of the U.S. state of Alaska.

See Gas and Mount Redoubt

Multiplicative inverse

In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1.

See Gas and Multiplicative inverse

Multiplicity (mathematics)

In mathematics, the multiplicity of a member of a multiset is the number of times it appears in the multiset.

See Gas and Multiplicity (mathematics)

Multivariable calculus

Multivariable calculus (also known as multivariate calculus) is the extension of calculus in one variable to calculus with functions of several variables: the differentiation and integration of functions involving multiple variables (multivariate), rather than just one.

See Gas and Multivariable calculus

Natural gas

Natural gas (also called fossil gas, methane gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane (95%) in addition to various smaller amounts of other higher alkanes. Gas and natural gas are gases.

See Gas and Natural gas

The Navier–Stokes equations are partial differential equations which describe the motion of viscous fluid substances.

See Gas and Navier–Stokes equations

Neon

Neon is a chemical element; it has symbol Ne and atomic number 10.

See Gas and Neon

Nitrogen

Nitrogen is a chemical element; it has symbol N and atomic number 7.

See Gas and Nitrogen

Noble gas

|- ! colspan.

See Gas and Noble gas

Non-equilibrium thermodynamics

Non-equilibrium thermodynamics is a branch of thermodynamics that deals with physical systems that are not in thermodynamic equilibrium but can be described in terms of macroscopic quantities (non-equilibrium state variables) that represent an extrapolation of the variables used to specify the system in thermodynamic equilibrium.

See Gas and Non-equilibrium thermodynamics

Normal (geometry)

In geometry, a normal is an object (e.g. a line, ray, or vector) that is perpendicular to a given object.

See Gas and Normal (geometry)

Oxford English Dictionary

The Oxford English Dictionary (OED) is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house.

See Gas and Oxford English Dictionary

Oxygen

Oxygen is a chemical element; it has symbol O and atomic number 8.

See Gas and Oxygen

Paracelsus

Paracelsus (1493 – 24 September 1541), born Theophrastus von Hohenheim (full name Philippus Aureolus Theophrastus Bombastus von Hohenheim), was a Swiss physician, alchemist, lay theologian, and philosopher of the German Renaissance.

See Gas and Paracelsus

Particle

In the physical sciences, a particle (or corpuscule in older texts) is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass.

See Gas and Particle

Particle number

In thermodynamics, the particle number (symbol) of a thermodynamic system is the number of constituent particles in that system.

See Gas and Particle number

Partition function (statistical mechanics)

In physics, a partition function describes the statistical properties of a system in thermodynamic equilibrium.

See Gas and Partition function (statistical mechanics)

Pascal (unit)

The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI).

See Gas and Pascal (unit)

Pauli exclusion principle

In quantum mechanics, the Pauli exclusion principle states that two or more identical particles with half-integer spins (i.e. fermions) cannot simultaneously occupy the same quantum state within a system that obeys the laws of quantum mechanics.

See Gas and Pauli exclusion principle

Perfect gas

In physics and engineering, a perfect gas is a theoretical gas model that differs from real gases in specific ways that makes certain calculations easier to handle. Gas and perfect gas are gases.

See Gas and Perfect gas

Physical chemistry

Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.

See Gas and Physical chemistry

Physical property

A physical property is any property of a physical system that is measurable.

See Gas and Physical property

Physical system

A physical system is a collection of physical objects under study.

See Gas and Physical system

Plasma (physics)

Plasma is one of four fundamental states of matter (the other three being solid, liquid, and gas) characterized by the presence of a significant portion of charged particles in any combination of ions or electrons. Gas and Plasma (physics) are gases, phase transitions and phases of matter.

See Gas and Plasma (physics)

Pneumatic chemistry

In the history of science, pneumatic chemistry is an area of scientific research of the seventeenth, eighteenth, and early nineteenth centuries. Gas and pneumatic chemistry are gases.

See Gas and Pneumatic chemistry

Point particle

A point particle, ideal particle or point-like particle (often spelled pointlike particle) is an idealization of particles heavily used in physics.

See Gas and Point particle

Potential energy

In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

See Gas and Potential energy

Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

See Gas and Pressure

Pressure measurement

Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface.

See Gas and Pressure measurement

Product (mathematics)

In mathematics, a product is the result of multiplication, or an expression that identifies objects (numbers or variables) to be multiplied, called factors.

See Gas and Product (mathematics)

Proportionality (mathematics)

In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio.

See Gas and Proportionality (mathematics)

Radon

Radon is a chemical element; it has symbol Rn and atomic number 86.

See Gas and Radon

Rate (mathematics)

In mathematics, a rate is the quotient of two quantities in different units of measurement, often represented as a fraction.

See Gas and Rate (mathematics)

Real gas

Real gases are nonideal gases whose molecules occupy space and have interactions; consequently, they do not adhere to the ideal gas law. Gas and Real gas are gases.

See Gas and Real gas

Robert Boyle

Robert Boyle (25 January 1627 – 31 December 1691) was an Anglo-Irish natural philosopher, chemist, physicist, alchemist and inventor.

See Gas and Robert Boyle

Scalar (physics)

Scalars (or scalar quantities) are physical quantities that are unaffected by changes to a vector space basis (i.e., a coordinate system transformation).

See Gas and Scalar (physics)

Schlieren photography

Schlieren photography is a process for photographing fluid flow.

See Gas and Schlieren photography

Solid

Solid is one of the four fundamental states of matter along with liquid, gas, and plasma. Gas and Solid are phase transitions and phases of matter.

See Gas and Solid

Space Shuttle

The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program.

See Gas and Space Shuttle

Standard temperature and pressure

Standard temperature and pressure (STP) or Standard conditions for temperature and pressure are various standard sets of conditions for experimental measurements used to allow comparisons to be made between different sets of data. Gas and standard temperature and pressure are gases.

See Gas and Standard temperature and pressure

State of matter

In physics, a state of matter is one of the distinct forms in which matter can exist. Gas and state of matter are phase transitions and phases of matter.

See Gas and State of matter

State variable

A state variable is one of the set of variables that are used to describe the mathematical "state" of a dynamical system.

See Gas and State variable

Statistical mechanics

In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities.

See Gas and Statistical mechanics

Tangential and normal components

In mathematics, given a vector at a point on a curve, that vector can be decomposed uniquely as a sum of two vectors, one tangent to the curve, called the tangential component of the vector, and another one perpendicular to the curve, called the normal component of the vector.

See Gas and Tangential and normal components

Test tube

A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.

See Gas and Test tube

Thermal energy

The term "thermal energy" is used loosely in various contexts in physics and engineering, generally related to the kinetic energy of vibrating and colliding atoms in a substance.

See Gas and Thermal energy

Thermodynamic equilibrium

Thermodynamic equilibrium is an axiomatic concept of thermodynamics.

See Gas and Thermodynamic equilibrium

Thermodynamic process

Classical thermodynamics considers three main kinds of thermodynamic processes: (1) changes in a system, (2) cycles in a system, and (3) flow processes.

See Gas and Thermodynamic process

Thermodynamic temperature

Thermodynamic temperature is a quantity defined in thermodynamics as distinct from kinetic theory or statistical mechanics.

See Gas and Thermodynamic temperature

Thermodynamics

Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation.

See Gas and Thermodynamics

Translation (geometry)

In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction.

See Gas and Translation (geometry)

Van der Waals force

In molecular physics and chemistry, the van der Waals force (sometimes van de Waals' force) is a distance-dependent interaction between atoms or molecules.

See Gas and Van der Waals force

Viscosity

The viscosity of a fluid is a measure of its resistance to deformation at a given rate.

See Gas and Viscosity

Volcanic gas

Volcanic gases are gases given off by active (or, at times, by dormant) volcanoes. Gas and Volcanic gas are gases.

See Gas and Volcanic gas

Volume (thermodynamics)

In thermodynamics, the volume of a system is an important extensive parameter for describing its thermodynamic state. Gas and volume (thermodynamics) are gases.

See Gas and Volume (thermodynamics)

Wind

Wind is the natural movement of air or other gases relative to a planet's surface.

See Gas and Wind

Xenon

Xenon is a chemical element; it has symbol Xe and atomic number 54.

See Gas and Xenon

Zero-point energy

Zero-point energy (ZPE) is the lowest possible energy that a quantum mechanical system may have.

See Gas and Zero-point energy

References

[1] https://en.wikipedia.org/wiki/Gas

Also known as Atomic Gas, Atomic gases, Gas State, Gas-phase, Gaseous, Gaseous State, Gaseous phase, Gases, Gasses, Organic gas, Permanent gas.

, Heat capacity, Heat capacity ratio, Helium, Homonuclear molecule, Hydrogen, Hydrostatics, Ideal gas, Ideal gas law, Incompressible flow, Inert gas, Intensive and extensive properties, Interatomic potential, Intermolecular force, Internal energy, Ion, Jacques Barzun, Jacques Charles, Jet engine, John Dalton, Joseph Louis Gay-Lussac, Kelvin, Kinetic energy, Krypton, Length scale, Lennard-Jones potential, Liquid, List of gases, List of refractive indices, List of states of matter, List of things named after Leonhard Euler, Loch, London dispersion force, Macroscopic scale, Mass flow rate, Maxwell–Boltzmann distribution, Mercury (element), Michael Faraday, Microcanonical ensemble, Microscopic scale, Microstate, Microstate (statistical mechanics), Mixture, Molar heat capacity, Molar volume, Mole (unit), Molecular vibration, Molecule, Momentum, Monatomic gas, Mount Redoubt, Multiplicative inverse, Multiplicity (mathematics), Multivariable calculus, Natural gas, Navier–Stokes equations, Neon, Nitrogen, Noble gas, Non-equilibrium thermodynamics, Normal (geometry), Oxford English Dictionary, Oxygen, Paracelsus, Particle, Particle number, Partition function (statistical mechanics), Pascal (unit), Pauli exclusion principle, Perfect gas, Physical chemistry, Physical property, Physical system, Plasma (physics), Pneumatic chemistry, Point particle, Potential energy, Pressure, Pressure measurement, Product (mathematics), Proportionality (mathematics), Radon, Rate (mathematics), Real gas, Robert Boyle, Scalar (physics), Schlieren photography, Solid, Space Shuttle, Standard temperature and pressure, State of matter, State variable, Statistical mechanics, Tangential and normal components, Test tube, Thermal energy, Thermodynamic equilibrium, Thermodynamic process, Thermodynamic temperature, Thermodynamics, Translation (geometry), Van der Waals force, Viscosity, Volcanic gas, Volume (thermodynamics), Wind, Xenon, Zero-point energy.