Question

1. what happens to a gas when it condenses and forms a liquid? a. it releases thermal energy. b. it absorbs thermal energy. c. it increases in temperature. d. it decreases in temperature.

Explanation:

Condensation is a phase - change process from gas to liquid. During this process, the gas loses energy. This energy is released as thermal energy to the surroundings. The temperature remains constant during the phase - change until all the gas has condensed.

Answer:

A. It releases thermal energy.