Condensation is a ______ process.

Condensation is a ______ process.

• A. Cooling
• B. Heating
• C. Phase-change
• D. Expanding

Answer: (A)

Condensation is a change of state in which water vapor loses enough energy to become a liquid. The key idea is the phase change from gas to liquid, which is why condensation is best described as a phase-change process. In real life, this often happens when the vapor cools to or below its dew point, and as the molecules rearrange into a liquid, latent heat is released to the surroundings. While cooling helps drive condensation, the essential concept is that matter changes phase, not merely that it gets hotter or colder. It’s not about expanding, and heating would instead promote vaporization.

Condensation is a change of state in which water vapor loses enough energy to become a liquid. The key idea is the phase change from gas to liquid, which is why condensation is best described as a phase-change process. In real life, this often happens when the vapor cools to or below its dew point, and as the molecules rearrange into a liquid, latent heat is released to the surroundings. While cooling helps drive condensation, the essential concept is that matter changes phase, not merely that it gets hotter or colder. It’s not about expanding, and heating would instead promote vaporization.