Evaporative cooling is a natural process where the conversion of a liquid to a gas takes away heat from the surroundings, leading to a cooling effect. This is the principle behind how sweating cools the body and why earthen pots keep water cool.
Water get cooled in earthen pot and not in a metal or glass pot because A) earthen walls are bad conductor so heat does not affect the water B) earthen walls of the pot absorb heat of water C) evaporation through micro pores on walls of the earthen pot D) None of the above
Asked in Assistant Engineer (Civil) 2018 19 2018 · Topic: Heat and Thermodynamics (Modes of Heat Transfer (Conduction, Convection, Radiation))
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Answer: C. evaporation through micro pores on walls of the earthen pot
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