What process changes a gas into a liquid?

What process changes a gas into a liquid?

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

Answer: (A)

Condensation is the process that changes a gas into a liquid. It happens when the gas loses energy—typically by cooling or by being compressed—so the molecules move more slowly and stick together, forming a liquid. You can see this in dew forming on grass or foggy mirrors: water vapor in the air becomes liquid water as it cools. In short, removing energy allows the gas to become a liquid. Evaporation is liquid turning into gas, sublimation is solid turning into gas, and freezing is liquid turning into solid.

Condensation is the process that changes a gas into a liquid. It happens when the gas loses energy—typically by cooling or by being compressed—so the molecules move more slowly and stick together, forming a liquid. You can see this in dew forming on grass or foggy mirrors: water vapor in the air becomes liquid water as it cools. In short, removing energy allows the gas to become a liquid. Evaporation is liquid turning into gas, sublimation is solid turning into gas, and freezing is liquid turning into solid.