Question

evaporation causes cooling effect and give long answer

Answer 1

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.

Ex : when we spray a deo on our hand. 

Ex 2 : Aetone

Reason for the above examples : the deo and the nail poslish romover are volatile substance. they absorb latent heat of vaporisation from aur hand and gets converted rapidly into gaseous form. henece we feel cold.                                          

Answer 2

when evaporation occurs then the liquid absorbs all the heat from the surroundings and take it with it and we feel cool. Evaporation causes cooling effect bcoz the heat energy is absorbed by surrounding particles.