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States of Matter

burkett-pnhs-statesofmatter

QuestionAnswer
Solid The state of matter in which materials have a definite shape and a definite volume.
Liquid The state of matter in which 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.
Phase change The reversible physical change that occurs when a substance changes from one state of matter to another.
Endothermic The system absorbs energy from it's surroundings.
Heat of fusion Another term for melting.
Exothermic The system releases energy to it's surroundings.
Vaporization The phase change in which a substance changes from a liquid into a gas.
Heat of vaporization The energy a substance must absorb in order to change from a liquid to a gas.
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 the walls of a container.
Condensation The phase change in which a substance changes from a gas or a vapor to a liquid.
Sublimation The phase change in which a substance changes from a solid to a liquid 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.
Created by: 2016burkettc
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