Chemistry

Question Analysis
This question assesses the student's understanding of the heat transfer during phase changes, specifically identifying which phase change involves the release of heat.

Key Concept Explanation
Phase changes can be either endothermic (absorbing heat) or exothermic (releasing heat). Condensation, where a gas changes into a liquid, is an exothermic process.

Step-by-step Solution
1. Identify the phase change that involves the release of heat.
2. Recall the definitions of the given phase changes:
Melting: solid to liquid (endothermic)
Vaporization: liquid to gas (endothermic)
Condensation...