Question

why does are palm feel cold when we put some perfume on it

Answer 1

it converts into vapour at a fast rate. this increases the liquid molecules around it in vapour phase thus our palm feel cold. acetone,petrol or perfume has very low boiling temperature. when we put someacetone on our palm the particles of it gain energy from our palm and evaporate quickly which causes cooling 





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Answer 2

When a liquid evaporates, the particles of the liquid absorb energy from the surroundings to compensate the loss of energy during evaporation. This makes the surroundings cool.