Sublimation and Deposition
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endothermic
Sublimation is an ______ process.
solid
Sublimation is the phase change in which a substance changes from a ________ to a gas or vapor without changing to a liquid first.
exothermic
This ______ phase change is the reverse of sublimation.
deposition
When a gas changes directly into a solid without first changing to a liquid, the phase change is called ________.