what do you mean by evaporation? why does evaporation cool a liquid?
Asked by | 22nd Apr, 2008, 08:40: PM
evaporation is vapourisation of surface molecules of a liquid into vapour state . it cools the liquid b coz liquid molecules on the surface absorb heat energy to get transformed from liquid to vapour state
Answered by | 21st Dec, 2017, 12:37: PM
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