Question

on hot sunny day why do people sprinkle water on roof or open ground

Answer 1

When people sprinkle water on hot and dry roof on a sunny day, that water evaporates by taking energy from the ground, roof and surroundings. The evaporation of water causes a cooling effect because the large latent heat of vaporization of water helps to cool the hot surface.

Answer 2

Because during evaporation the water is evaporated from the surface of the roof and because of thermoregulation our house remains cold.



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