Question

At a room temperature, which of the following will evaporate first, a drop of water or a drop of ethanol

Answer 1

Ethanol will evaporate first because it is more volatile or has a lower boiling point than water.

Answer 2

Answer:

The water and the alcohol will start to evaporate once you start blowing on your hand. Compared with water, alcohol has a lower heat of evaporation. That means that for the same amount of liquid, more heat transfer occurs during the evaporation of water compared with the alcohol.