40 relations: Activation energy, Aqueous solution, Atmosphere (unit), Basal metabolic rate, Bond energy, Caloric theory, Calorie (disambiguation), Calorimeter, Calorimetry, Carbohydrate, Celsius, Chemical reaction, Chemistry, Conversion of units, Empty calorie, Food energy, Gram, Heat, Heat capacity, International Committee for Weights and Measures, International Organization for Standardization, International System of Units, ISO 31-4, Joule, KCAL, Kelvin, Kilocalorie per mole, Metric system, Mole (unit), National Physical Laboratory (United Kingdom), Nicolas Clément, Nutrition facts label, Protein (nutrient), SI derived unit, Specific energy, Thermochemistry, UK Metric Association, Units of energy, Water (data page), Wilbur Olin Atwater.
In chemistry and physics, activation energy is the energy which must be available to a chemical or nuclear system with potential reactants to result in: a chemical reaction, nuclear reaction, or other various other physical phenomena.
An aqueous solution is a solution in which the solvent is water.
The standard atmosphere (symbol: atm) is a unit of pressure defined as.
Basal metabolic rate (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest.
In chemistry, bond energy (E) or bond enthalpy (H) is the measure of bond strength in a chemical bond.
The caloric theory is an obsolete scientific theory that heat consists of a self-repellent fluid called caloric that flows from hotter bodies to colder bodies.
A calorie is an old unit of energy, now superseded by the joule.
A calorimeter is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity.
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.
A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula (where m may be different from n).
The Celsius scale, previously known as the centigrade scale, is a temperature scale used by the International System of Units (SI).
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds.
Conversion of units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.
In human nutrition, the term empty calories applies to foods and beverages composed primarily or solely of sugar, fats or oils, or alcohol-containing beverages.
Food energy is chemical energy that animals (including humans) derive from food through the process of cellular respiration.
The gram (alternative spelling: gramme; SI unit symbol: g) (Latin gramma, from Greek γράμμα, grámma) is a metric system unit of mass.
In thermodynamics, heat is energy transferred from one system to another as a result of thermal interactions.
Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to (or removed from) an object to the resulting temperature change.
The International Committee for Weights and Measures (abbreviated CIPM from the French Comité international des poids et mesures) consists of eighteen persons, each of a different nationality, from Member States of the Metre Convention (Convention du Mètre) appointed by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM.
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.
ISO 31-4 is the part of international standard ISO 31 that defines names and symbols for quantities and units related to heat.
The joule (symbol: J) is a derived unit of energy in the International System of Units.
KCAL may refer to.
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
The kilocalorie per mole is a unit to measure an amount of energy per number of molecules, atoms, or other similar particles.
The metric system is an internationally adopted decimal system of measurement.
The mole, symbol mol, is the SI unit of amount of substance.
The National Physical Laboratory (NPL) is the national measurement standards laboratory for the United Kingdom, based at Bushy Park in Teddington, London, England.
Nicolas Clément (12 January 1779 – 21 November 1841), also known as Mr.
The nutrition facts label (also known as the nutrition information panel, and other slight variations) is a label required on most packaged food in many countries.
Proteins are essential nutrients for the human body.
SI derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).
Specific energy is energy per unit mass.
Thermochemistry is the study of the heat energy associated with chemical reactions and/or physical transformations.
The UK Metric Association, or UKMA, is an advocacy group in the United Kingdom that argues for Metrication in the United Kingdom and aims to persuade the general public into its way of thinking about the metric system.
Because energy is defined via work, the SI unit for energy is the same as the unit of work – the joule (J), named in honor of James Prescott Joule and his experiments on the mechanical equivalent of heat.
This page provides supplementary data to the article properties of water.
Wilbur Olin Atwater (May 3, 1844 – September 22, 1907) was an American chemist known for his studies of human nutrition and metabolism.
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