What is the process in which a gas becomes a liquid?

What is the process in which a gas becomes a liquid?

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

Answer: (C)

Condensation is the process by which a gas becomes a liquid. When gas molecules lose energy—by cooling or compression—they slow down and the intermolecular forces pull them closer together, forming a liquid. At a certain temperature and pressure, the gas reaches its condensation (dew) point and changes phase. This is why water vapor in the air condenses into droplets on a cold surface or forms clouds. Evaporation is the opposite, a liquid turning into a gas. Sublimation is solid turning directly into a gas. Precipitation refers to rain, snow, or hail and isn’t about a gas turning into a liquid.

Condensation is the process by which a gas becomes a liquid. When gas molecules lose energy—by cooling or compression—they slow down and the intermolecular forces pull them closer together, forming a liquid. At a certain temperature and pressure, the gas reaches its condensation (dew) point and changes phase. This is why water vapor in the air condenses into droplets on a cold surface or forms clouds. Evaporation is the opposite, a liquid turning into a gas. Sublimation is solid turning directly into a gas. Precipitation refers to rain, snow, or hail and isn’t about a gas turning into a liquid.