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Chapter 3

Solid the state of matter in which materials have a definite shape and 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 its motion.
Pressure the result of a force distributed over an are.
Absolute Zero A temperature of 0 K
Charles's Law states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of the gas are constant.
Boyle's Law states the the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant.
Phase change the reversible physical change that occurs when a substance changes from one state of matter to another.
endothermic change the system releases energy to its surroundings.
Heat of fusion Energy for water, fusion is another word for melting
Exothermic system releases energy in its surroundings
Vaporizaton Phase change in which a substance changes from a liquid into a gas
heat of vaporizaton amount of energy of water, varies from substance to subtances
evaporation The process that changes a substance from a liquid to a gas at temperatures below the substances boiling point.
Vapor pressure pressure caused by collisions of this vapor and the walls of the container.
Condensation phase change in which a substance changes from a gas or vapor to a liquid.
Sublimation phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.
Deposition When a gas vapor changes directly into a solid without first changing to a liquid.
Created by: cassandra.yoak