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Intro to I.S

Noyes-PNHS-Intro to I.S. vocab

QuestionAnswer
The state of matter in which materials have a definite shape and a definite volume Solid
The state of matter in which a material has a definite volume but not a definite shape Liquid
The state of matter in which a material has neither a definite shape nor a definite volume Gas
The energy an object has due to its motion Kinetic energy
The reversible physical change that occurs when a substance changes from one state of matter to another Phase change
A change where the system absorbs energy from its surroundings Endothermic
The heat at which something melts, which varies from substance to substance Heat of Fusion
A change where the system releases energy to its surroundings Exothermic
The phase change in which a substance changes from a liquid into a gas (Endothermic) Vaporization
The amount of heat required to change a liquid into a gas Heat of vaporization
The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point Evaporation
The pressure caused by the collision of vapor and the walls of a container Vapor pressure
The phase change in which a substance changes from a gas or vapor to a liquid Condensation
The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first Sublimination
The phase change when a gas or vapor changes directly into a solid without first changing into a liquid Deposition
Created by: arnoyes24
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