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PCAT Chemical Processes – State Change
- by
- Jan 03, 2018
- PCAT Question of the Day
At low pressures and temperatures, water can go directly from ice to water vapor. This state change is known as:
A) sublimation
B) deposition
C) vaporization
D) gaseous melting
Click for Explanation
A state change from solid to gas is sublimation.
A) sublimation, correct.
B) deposition, incorrect, Deposition is gas to solid.
C) vaporization, incorrect, vaporization is liquid to gas.
D) gaseous melting, incorrect, there is no such thing as gaseous melting.
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