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Chap.3 Vocab.

TermDefinition
Solid The state of matter in which materials have a definite shape and a definite volume.
Liquid the state of matter in which a material has a definite volume but not a definite shape.
Gas the state of matter in which a material has neither a definite shape nor a definite volume.
Kinetic Energy the energy an object has due to it's motion.
Pressure The result of a force distributed over an area.
Absolute Zero a temperature of 0 kelvins
Carles's Law the direct proportion of the volume of a gas to its temperature (in kelvins) if the pressure and the number of particles of the gas are constant.
Boyle's Law the inverse variation of the volume of a gas with its pressure if the temperature and the number of particles are constant.
Phase Change A reversible physical change that occurs when a substance changes from one state of matter to another.
Endothermic a description of a change in which a system absorbs energy from its surroundings.
Heat of Fusion the energy a substance must absorb in order to change from a solid to a liquid.
Exothermic a description of a change in which a system releases energy to its surrounding.
Vaporization the phase change in which a substance changes from a liquid into gas.
Heat of Vaporization the energy a substance must absorb in order to change from a solid to a liquid.
Evaporation the process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point.
Vapor Pressure the pressure caused by the collisions of particles in a vapor with walls of a container.
Condensation the phase change in which a substance changes from a gas or vapor to a liquid.
Sublimation the phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.
Deposition the phase change in which a gas or vapor changes directly into a solid without first changing into a liquid; the placement of sediment that has been transported from another location.
Created by: Patience Smith