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chapter 3 def4

QuestionAnswer
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 is the energy an object has due to its motion.
Phase Change the reversible physical change that occurs when a substance changes from one state of matter to another.
Endothermic when the system absorbs energy fron its surroundings.
Heat of Fusion the energy a substance must absorb in order to change from a solid to a liquid
Exothermic when the system releases energy to its surroundings.
Vaporization the phase change in which a subsatnce changes from a liquid to a 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 substances boiling point.
Vapor Pressure the pressure caused by the collisions of this vapor and the walls of the 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 with out changing to a liquid first.
Deposition when a gas or vapor changes directly inot a solid without first changing to a liquid.
Created by: kaylees