Which term describes the process that occurs when water vapor is cooled and changes from a gas to a liquid?

• A. Freezing
• B. Sublimation
• C. Condensation
• D. Evaporation

Answer: (C)

Verified step by step guidance

1. Identify the phase change described: water vapor (gas) cooling and changing into a liquid.
2. Recall the definitions of phase changes: Freezing is liquid to solid, Sublimation is solid to gas, Evaporation is liquid to gas.
3. Understand that when a gas cools and becomes a liquid, this process is called condensation.
4. Match the process described (gas to liquid) with the correct term: condensation.
5. Conclude that the term describing water vapor cooling and changing to liquid is condensation.