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3.3 section question
3.3 section questions
Question | Answer |
---|---|
What is a phase change? | A phase change is the reversible physical change that occurs when a substance changes from one state of matter to another. |
True or false: The temperature of a substance does change during the phase change | False |
What are six common phase changes? | Melting, freezing, vaporization, condensation, sublimation and deposition. |
True or false: Energy is either absorbed or released during a phase change? | True |
What is vapor pressure? | The pressure caused by the collisions of this vapor and the walls of the container is called vapor pressure. |
When does evaporation take place when a liquid occurs at the temperature below the boiling point? | Surface |