# Question #18a77

Feb 13, 2017

Water vapour condenses into water droplets.

#### Explanation:

Gas to Liquid is Condensation.

Feb 13, 2017

$\text{The transition vapour (or gas) to liquid...........}$

#### Explanation:

And because the liquid phase occupies MUCH less volume than the gaseous phase, sometimes we can use the transition to drive an engine......certainly we can do so with water vapour.