Question

The temperature at which a substance changes from a gas to liquid is called?

Answer 1

Boiling Point

Explanation:

The temperature when liquid changes to gas (and when gas changes to liquid) is called the boiling point. It doesn't matter the "direction" of change.

Answer 2

It is called condensation.

Explanation:

This process of occurs when gas molecules lose thermal energy that causes them to change into a liquid state. Condensation is a change in the physical state of matter and the process is the reverse of evaporation.