What is the name for a direct phase change from solid to gas?
ASublimation
BDeposition
CCondensation
DRecombination
Answer & Solution
Correct answer: A. Sublimation
1. Melting turns a solid into a liquid, and freezing turns a liquid into a solid.
2. Vaporization turns a liquid into a gas, and condensation turns a gas into a liquid.
3. Sublimation is the name for a phase change straight from solid to gas.
4. Deposition is the reverse process, gas to solid, and recombination refers to plasma turning back into gas.
5. So sublimation is correct.
_Source: OpenStax Physics (CC BY 4.0), Ch 11 "Thermal Energy, Heat, and Work", section 11.3 Phase Change and Latent Heat_
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