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vocabulary5
Question | Answer |
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What is a phase change? | A reversible physical change that occurs when a substance changes from one state of matter to another. |
What is endothermic? | A description of change in which a system absorbs energy from its surroundings. |
What is heat of fusion? | The energy a substance must absorb in order to change from a solid to a liquid. |
What is exothermic? | A description of a change in which a system releases energy to its surroundings. |
What is vaporization? | The phase change in which a substance changes from a liquid to a gas. |
What is heat of vaporization? | The energy a substance must absorb in order to change from a liquid to a gas. |
What is evaporation? | the process that changes a substance from a liquid to a gas at temperatures below the substances boiling point. |
What is vapor pressure? | the pressure caused by the collisions of particles in vapor with the walls of a container. |
What is condensation? | the phase change in which a substance changes from a gas vapor to a liquid. |
What is sublimation? | the phase change in which a substance changes from a solid to a gas vapor without changing to a liquid first |
What is deposition? | the phase change in which a gas changes directly to a solid without first changing to a liquid. |