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Vocab_3.3_bfg

Phase changes

QuestionAnswer
what is an endothermic change? it absorbs energy from its surroundings
what are the different phase changes? melting, freezing, vaporization, condensation, sublimation, and deposition.
what happens to the temperature in a phase change? the temperature of a substance does not change in a phase change.
what happens to the energy during phase changes? energy is absorbed or released during a phase change.
what is an exothermic change? when a substance releases energy to its surroundings.
how would you describe "heat of fusion"? fusion- is also another term for melting. heat of fusion transfers heat from substance to substance.
differentiate between vaporization and condensation. vaporization- phase change from a liquid to a gas. condensation- a phase change from a gas or vapor to a liquid.
what is sublimation? a phase change from a solid to a gas or vapor.
what is deposition? when a gas or vapor changes directly into a solid.
explain evaporation. evaporation is the specific phase change when a liquid changes to a gas.
at what temperature does water boil? 100ºC or 212ºF.
Created by: bgellar
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