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An open bowl, 0 . 5 m in diameter, contains water at 3 6 0 K which is evaporating into atmosphere. If the air currents
An open bowl, m in diameter, contains water at K which is evaporating into
atmosphere. If the air currents are sufficient strong to remove the water vapor as it formed and if
the resistance to its mass transfer in air is equivalent to that of mm layer for condition of
molecular diffusion, what will be the rate of cooling due to evaporation. Water can be considered
as well mixed and water equivalent of the system can be taken as kg Diffusivity of water
vapor in air can be taken as cm
s Vapor pressure of water at K is kNm
Also find
out falling rate of temperature.
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