Question

Is it possible to force a temperature difference using evaporation/condensation cycle?

Answer 1

Yes, a temperature difference can be created using evaporation or condensation.

Evaporation is a cooling process. When evaporation happens, water absorbs energy from its surrounding which results in cooling and hence fall in surrounding temperature.

In condensation, the gaseous water molecules coalesce and form water. In this process, the latent heat of fusion is released into the surrounding which results in rise of surrounding temperature.

So it is possible to create a temperature difference using evaporation and condensation.

Answer 2

Evaporation and condensation differ because when waterevaporates, it turns into a gas in the air.