Engineering Board Exam Reviewer · Thermodynamics · easy

The direct change of phase from solid to vapor is called:

1. Condensation
2. Sublimation
3. Fusion
4. Vaporization

Answer

B. Sublimation

Solution

Example: dry ice (solid CO2) sublimes at atmospheric pressure. Sublimation occurs below the triple-point pressure.

More Thermodynamics questions

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2. On the Fahrenheit scale, the normal freezing and boiling points of water are:
3. At what temperature do the Celsius and Fahrenheit scales read the same value?
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