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phase changes 3.3

collins-phns-phasechangesvocab

QuestionAnswer
What is a phase change? The reversible physical change that occurs when a substance changes from one state of matter to another.
What happens during a endothermic change? The system absorbs energy from its surroundings.
What is heat of fusion? The Energy a substance must absorb in order to change form a solid to a liquid.
The system releases energy to its surroundings. Exothermic
A endothermic process which changes a liquid into a gas. Vaporization
The energy a substance must have to change from a liquid to a gas. Heat if vaporization
The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point. Evaporation
Pressure caused by the collisions of this vapor and the walls of a container. Vapor pressure
The Phase change in which a sustance changes from a gas or vapor to a liquid. Condensation
The phase change in which a substances changes from a solid to a gas or vapor without changign to a liquid first. Sublimation
When a gas or vapor changes directly into a solid without first changing to a liquid. Deposition
Created by: l.collins98
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