Question

if the back of your hand mostened with the alcohol you will find that it rapidly become dry why is it that while it is drying your hand
cool

Answer 1

Any object absorbs heat from anything cooler than it. When you put alcohol on your skin, first, your body will warm the alcohol until it is the same temperature as your skin, and that feels a little cold to you. Once warmed up to body temperature, alcohol can evaporate easily and even though the alcohol has evaporated completely off your hand the cool feeling will still linger until that spot on your hand warms back up to the regular temperature
hope it will help u ☺

Answer 2

Answer:

The alcohol on our hand absorbs its latent heat of vaporisation from the surface of our hands and evaporates. Drawing heat and therefore, cooling our hand in the process.