Question

If the back of your hand is moistened with
alcohol, you will find that it rapidly
becomes dry. Why is it that while it is
drying, your hand feels cool?



plz answer it quickly...
i will mark the first one as brainlist​

Answer 1

Answer:

It's happens because the alcohol has a tenancy to evaporate fastly . so when it evaporate it also take away the heat present in hand so it's makes us to feel cool.

Or, A detailed answer.

Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature.

Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature.That is, alcohol changes rapidly from liquid to gaseous state when it comes in contact with its surroundings.

Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature.That is, alcohol changes rapidly from liquid to gaseous state when it comes in contact with its surroundings.Hence, when back of your hand is moistened with alcohol then it actually absorbs heat from your hand, that is, endothermic reaction takes place and our hand feels cool.

Answer 2

because the alcohol evaporates quickly and our palm feels cold