How evaporation causes cooling?

Evaporation is the process where molecules leave a condensed liquid state and go into a gaseous state. During the evaporation process, some of the fastest-moving molecules (hottest ones with the highest energy) on the surface manage to escape from the condensed liquid resulting only the cooler molecules (the ones with less energy) left behind in the liquid. Evaporation lowers the liquid temperature and is a cooling process.

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