Question

What happens to the molecules within a gas when the gas condenses?

Answer 1

In evaporation, a liquid (like water) changes state to become a gas (water vapor). In condensation, a gas (like water vapor) changes state to become a liquid (water). Explain that as water molecules in the air cool and slow down, their attractions overcome their speed and they join together, forming liquid water.

Answer 2

The answer is B. They lose energy

As condensation of a gas occurs the particles lose heat energy and begin to slow down. This allows they're attraction to one another overcome their high rate of movement. Therefore; allowing them to combine and form a liquid.