A process in which a gas changes directly into a solid is ___.
freezing
condensation
vaporization
deposition
melting
sublimation
deposition
The correct answer is deposition.
The correct answer is deposition.
To arrive at the answer, we need to understand the various processes of phase change that a substance can undergo. The five options mentioned in the question are all processes of phase change.
Freezing involves the change of a liquid into a solid.
Condensation is the process of a gas transforming into a liquid.
Vaporization refers to the transition of a liquid into a gas.
Melting is the alteration of a solid into a liquid.
Sublimation, the process mentioned in the question, is when a substance transitions directly from a solid to a gas, without going through a liquid phase.
Therefore, the process in which a gas changes directly into a solid is called deposition.