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chapter 3 def4
| Question | Answer |
|---|---|
| Solid | the state of matter in which materials have a definite shape and a definite volume. |
| Liquid | the state of matter in which a material has a definite volume but not a definite shape. |
| Gas | the state of matter in which a material has neither a definite shape nor a definite volume. |
| Kinetic Energy | is 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 | when the system absorbs energy fron its surroundings. |
| Heat of Fusion | the energy a substance must absorb in order to change from a solid to a liquid |
| Exothermic | when the system releases energy to its surroundings. |
| Vaporization | the phase change in which a subsatnce changes from a liquid to a gas. |
| Heat of Vaporization | The energy a substance must absorb in order to change from a solid to a liquid. |
| Evaporation | the process that changes a substance from a liquid to a gas at temperatures below the substances boiling point. |
| Vapor Pressure | the pressure caused by the collisions of this 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 with out changing to a liquid first. |
| Deposition | when a gas or vapor changes directly inot a solid without first changing to a liquid. |
Created by:
kaylees
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