Question

what do you mean by evaporation? why does evaporation cool a liquid?

Answer 1

evaporation is a surface phenomenon in which liquid changes into vapours. example when we put some water in an earthen pot it cools down because in earthen pot some pores are present it came out and gain energy from surrounding to cool down. Thus, evaporation has cooling effect.

Answer 2

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• The process of changing liquid into gas both below and at the boiling temperature is called Evaporation. Evaporation gain heat from the surrounding as a result there is a loss of heat in the surrounding the cooling process start and the surface become cool. This is the reason why evaporation produce cooling.