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The ability to do work or cause change

law of conservation of energy

the law that states that energy cannot be created or destroyed but can be changed from one form to another

chemical potential energy

energy stored in chemical bonds


thermal energy transferred from one object to another because of a temperature difference


unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure


a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second

specific heat

the heat required to raise the temperature of one gram of a substance one degree centigrade


an insulated device used to measure the absorption or release of heat in chemical or physical processes


the study of the transfers of energy as heat that accompany chemical reactions and physical changes


the heat content of a system at constant pressure

enthalpy of reaction

the amount of energy released or absorbed as heat during a chemical reaction

molar enthalpy of fusion

the amount of energy as heat required to chang 1 mol of a substance from solid to liquid at constant temperature and pressure

molar enthalpy of vaporization

the amount of energy as heat that is needed to vaporize one mole of liquid at the liquid's boiling point

standard enthalpy of formation

the enthalpy change for the reaction that produces 1 mol of a compound in its standard state from its elements in their standard states.

sensible heat

heat that causes a change in temperature

latent heat

heat absorbed or given off during a change of phase at a constant temperature


a relative measure of how hot or cold something is measured on a scale, or the average kinetic energy of the particles in a substance or object.

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