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Heat
Chapter 10
10
Chemistry
Not Applicable
04/26/2004

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Term
Internal energy
Definition
the energy of a substance due to the random motions of its component particles and equal to the total energy of those particles
Term
Thermal equilibrium
Definition
the state in which two bodies in pyshical contact wiht each other have identical temperatures
Term
Heat
Definition
the energy transferred between odjects because of a difference in their temperatures
Term
Specific heat capacity
Definition
the quantit of evergy needed to raise the temperature of 1 kg of a substance by 1°C at constant pressure
Term
Calorimetry
Definition
an experimental procedureused to measure the energy transferred from one substance to another as heat
Term
Phase change
Definition
the phyiscal change of a substance from one state (solid,liquid, or gas) to another at constant temperature and pressure
Term
Heat of Fusion
Definition
the energy per unit mass transferred in order to change a substane from solid to liquid or from liquid to solid at constant temperature and pressure
Term
Heat of Vaporization
Definition
the energy per unit mass transferreed in order to change a substance deom liquid to vapor or from vapor to liquid at constant temperature and pressure
Term
Latent heat
Definition
the energy per unit mass that is transferred during a phase chnage of a substance
Term
Thermal conduction
Definition
the process by which energy is transferred as heat through a material between two points at different temperatures
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