What is the term for vapor in the air changing to a liquid?

• A. Vaporization
• B. Condensation
• C. Boiling
• D. Sublimation

Answer: (B)

The process of vapor in the air changing to a liquid is known as condensation. This phenomenon occurs when water vapor cools down and loses energy, resulting in the formation of liquid droplets. It is a common occurrence in nature and can be seen when dew forms on grass in the morning or when water condenses on a cold glass. Understanding condensation is important in various fields, including meteorology, HVAC systems, and environmental science, as it helps to explain weather patterns and the water cycle.

Vaporization refers to the transition of a liquid into a gas, while boiling is a specific type of vaporization that occurs throughout a liquid at a certain temperature. Sublimation involves the direct transition from a solid to a gas without becoming liquid, which is a different transformational process. Hence, the accurate term for the change of vapor to a liquid is indeed condensation.