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vocab_3.3_df

QuestionAnswer
phase change is the reversible physical change that occurs when a substance changes from one state of matter to another
endothermic the system absorbs energy from its surroundings
heat of fusion heat of fusion varies from substance to substance
exothermic the system releases energy into its surroundings
vaporization when a substance must absorb energy to change from a liquid to a gas
heat of vaporization when evaporation takes place at the surface of a liquid and occurs at temperatures below boiling point
evaporation a process that changes a liquid to a gas at temperatures below the substances boiling point
vapor pressure the pressure caused by the collisions of a vapor and the walls of the container
condensation a phase in which a substance changes from a gas vapor to a liquid
sublimation a phase without changing to a liquid first
deposition when a gas vapor changes directly into a solid without first changing into a liquid
Created by: d_figueroa12
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