5
QuizMultiple Choice

Phase Changes — Quiz

Question 5 • Chemistry

A solid substance turns directly into a gas. Which term describes this change?

Answer
A
sublimation
B
deposition
C
melting
D
evaporation

Explanation

Sublimation is the change in which a solid turns directly into a gas without first becoming a liquid. Deposition is the reverse change, from gas to solid; melting and evaporation both involve a liquid stage. Therefore, the correct choice is B, sublimation.

AI-written and checked against the verified answer.

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