Chemistry

Question Analysis
This question tests the student's understanding of the phase change process and whether it is endothermic or exothermic.

Key Concept Explanation
Condensation is the phase change where a substance transitions from a gas to a liquid, releasing energy in the process. This is an exothermic process.

Step-by-step Solution
1. Identify the phase change where a gas turns into a liquid.
2. Recall that this process is called condensation.
3...