Question

Give reason why :


Evaporation produces cooling of the liquid. ​

Answer 1

Answer :-

____________

Evaporation causes cooling because during evaporation the particle of the liqued absord energy from the surroundings to regain the energy lost during evaporation. the absorbtion of heat from the surrounding makes the surrounding cool.

Example : 1.when we spray a deo on our hand. 2.Aetone

Answer 2

We have to give reason on the following statement :

Evaporation produces cooling of the liquid.

Answer :

This is because during evaporation the molecules having high energy are able to overcome the attractive forces of other molecules and escape as vapour.

As the proportion of high kinetic energy molecules in the liquid decreases the average kinetic energy of the liquid decreases.

And this results in internal cooling of the liquid.

That's why evaporation produces cooling of liquid.