A pitcher contains 1 kg water at 40^(@)C. It is given that the rate of evaporation of water from the surface of pitcher is 50 gm/s. Find the time it will take to cool down the water inside to 30^(@)C. Given that latent heat of vaporization of water is 540 cal /g and specific heat of water is 1 "cal"//g.^(@)C.

A pitcher contains 1 kg water at 40^(@)C. It is given that the rate of

1.	A pitcher contains 1 kg water at 40^(@)C. It is given that the rate of evaporation of water from the surface of pitcher is 50 gm/s. Find the time it will take to cool down the water inside to 30^(@)C. Given that latent heat of vaporization of water is 540 cal /g and specific heat of water is 1 "cal"//g.^(@)C.
Answer» ANSWER :`20(1-e)^(-1//54)s`

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