Question

evaporation causes cooling. Justify the statement from your daily life.

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.

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

Answer 2

Let some tea kept in a place in a container. Now the tea being a liquid evaporates from its surface. The tea will be cool after sometime. No other cooling reagent is added to it or it is not kept in fridge. The only spontaneous process taking place is evaporation. So it proves that evaporation causes cooling.





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