Get it on Google Play
New! Download Unionpedia on your Androidâ„¢ device!
Faster access than browser!

Diathermal wall

+ Save concept

In thermodynamics, a diathermal wall between two thermodynamic systems allows heat but not matter to pass across it. [1]

21 relations: Adiabatic wall, Calorimetry, Closed system, Einstein coefficients, Elsevier, Emissivity, George H. Bryan, Heat, Helmholtz reciprocity, John Gamble Kirkwood, Kirchhoff's law of thermal radiation, Longman, Macroscopic scale, Max Born, Max Planck, Temperature, Thermal conduction, Thermal radiation, Thermodynamic equilibrium, Thermodynamic system, Thermodynamics.

Adiabatic wall

In thermodynamics, an adiabatic wall between two thermodynamic systems does not allow heat or matter to pass across it.

New!!: Diathermal wall and Adiabatic wall · See more »


Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints.

New!!: Diathermal wall and Calorimetry · See more »

Closed system

A closed system is a physical system that does not allow certain types of transfers (such as transfer of mass and energy transfer) in or out of the system.

New!!: Diathermal wall and Closed system · See more »

Einstein coefficients

Einstein coefficients are mathematical quantities which are a measure of the probability of absorption or emission of light by an atom or molecule.

New!!: Diathermal wall and Einstein coefficients · See more »


Elsevier is an information and analytics company and one of the world's major providers of scientific, technical, and medical information.

New!!: Diathermal wall and Elsevier · See more »


The emissivity of the surface of a material is its effectiveness in emitting energy as thermal radiation.

New!!: Diathermal wall and Emissivity · See more »

George H. Bryan

George Hartley Bryan FRS (1 March 1864, Cambridge – 13 October 1928, Bordighera) was an English applied mathematician who was an authority on thermodynamics and aeronautics.

New!!: Diathermal wall and George H. Bryan · See more »


In thermodynamics, heat is energy transferred from one system to another as a result of thermal interactions.

New!!: Diathermal wall and Heat · See more »

Helmholtz reciprocity

The Helmholtz reciprocity principle describes how a ray of light and its reverse ray encounter matched optical adventures, such as reflections, refractions, and absorptions in a passive medium, or at an interface.

New!!: Diathermal wall and Helmholtz reciprocity · See more »

John Gamble Kirkwood

John "Jack" Gamble Kirkwood (May 30, 1907, Gotebo, Oklahoma – August 9, 1959, New Haven, Connecticut) was a noted chemist and physicist, holding faculty positions at Cornell University, the University of Chicago, California Institute of Technology, and Yale University.

New!!: Diathermal wall and John Gamble Kirkwood · See more »

Kirchhoff's law of thermal radiation

In heat transfer, Kirchhoff's law of thermal radiation refers to wavelength-specific radiative emission and absorption by a material body in thermodynamic equilibrium, including radiative exchange equilibrium.

New!!: Diathermal wall and Kirchhoff's law of thermal radiation · See more »


Longman, commonly known as Pearson Longman, is a publishing company founded in London, England, in 1724 and is owned by Pearson PLC.

New!!: Diathermal wall and Longman · See more »

Macroscopic scale

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

New!!: Diathermal wall and Macroscopic scale · See more »

Max Born

Max Born (11 December 1882 – 5 January 1970) was a German physicist and mathematician who was instrumental in the development of quantum mechanics.

New!!: Diathermal wall and Max Born · See more »

Max Planck

Max Karl Ernst Ludwig Planck, FRS (23 April 1858 – 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.

New!!: Diathermal wall and Max Planck · See more »


Temperature is a physical quantity expressing hot and cold.

New!!: Diathermal wall and Temperature · See more »

Thermal conduction

Thermal conduction is the transfer of heat (internal energy) by microscopic collisions of particles and movement of electrons within a body.

New!!: Diathermal wall and Thermal conduction · See more »

Thermal radiation

Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter.

New!!: Diathermal wall and Thermal radiation · See more »

Thermodynamic equilibrium

Thermodynamic equilibrium is an axiomatic concept of thermodynamics.

New!!: Diathermal wall and Thermodynamic equilibrium · See more »

Thermodynamic system

A thermodynamic system is the material and radiative content of a macroscopic volume in space, that can be adequately described by thermodynamic state variables such as temperature, entropy, internal energy, and pressure.

New!!: Diathermal wall and Thermodynamic system · See more »


Thermodynamics is the branch of physics concerned with heat and temperature and their relation to energy and work.

New!!: Diathermal wall and Thermodynamics · See more »

Redirects here:

Diathermal boundary.


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

Hey! We are on Facebook now! »