Question

Describe the various factors which affect the rate of evaporation . Latent heat of vapoirisation of 2 liquids A and B is 100J/kg and 150 J/kg respectively .which one can produce more cooling effect and why?

Answer 1

there are four factors affecting it 1)surface area - the more surface area then more evaporation will take placeas it is a surface phenomena2)humidity-the more humidity then less evaporation will take placeas the water content in air will be higher and less space will be left 3)wind speed- the more winds then more evaporation will take placethe winds carry away the water vapors with it leaving a lot of space for more evaporation 4)temperature-the high temperature the more evaporationa rise in temp. will make more water vapors. B will produce more cooling effect because it will absorb more heat than A