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3.3 Chemistry
Vocabulary Words
| Question | Answer |
|---|---|
| phase change | reversible physical change that occurs when a substance changes from one state of matter to another |
| endothermic | description of a change in which a system absorbs energy from its surroundings |
| heat of fusion | energy a substance must absorb in order to change from a solid to a liquid |
| exothermic | description of a change in which a system releases energy to its surroundings |
| vaporization | phase change in which a substance changes from a liquid to a gas |
| heat of vaporization | energy a substance must absorb in order to change from a liquid to a solid |
| evaporation | process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point |
| vapor pressure | phase change in which a substance changes from a liquid into a gas |
| condensation | phase change in which a substance changes from a gas or vapor to a liquid |
| sublimation | phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first |
| deposition | when a gas or vapor changes directly into a solid without first changing to a liquid |
Created by:
MarieElyn
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