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Intro. to IS

Rapose - PNHS - Intro to IS. Vocab

QuestionAnswer
Solid the state of matter in which materials have a definite shape and a definite volume
liquid the state of matter in which materials have a definite volume, but not a definite shape.
gas the state of matter in which materials have neither a definite shape nor a definite volume
kinetic energy 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 change the system that absorbs energy from its surroundings
heat of fusion melting
exothermic change the system released energy to its surroundings
vaporization the phase change in which a substance changes from a liquid into a gas
heat of vaporization the amount of energy the liquid gains when vaporizing
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 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 without changing to a liquid first
deposition the phase change in which a gas or vapor changes directly to a solid without first changing to a liquid
Created by: erapose
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