Question

If the back of your hand is moistened with alcohol it rapidly becomes dry. Why does it feel cool while it is drying?

Answer 1

due to the process of evaporation moreover rapidly because of alcohol have low boiling point

Answer 2

Answer: Because evaporation causes cooling.

Explanation:

Evaporation is the process in which liquid starts to convert to gaseous state. Alcohol is a low boiling liquid and thus have low boiling point. It easily converts to gaseous state. The high energy molecules of alcohol absorb energy from the surrounding molecules and thus escape in the form of vapors.

The left molecules will have less kinetic energy and thus will have lesser temperature and thus feels cold.