Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

Film
None of these
Surface-renewal
Penetration

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Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

And humidified
At the same relative humidity
And dehumidified with increase in wet bulb temperature
And dehumidified with decrease in wet bulb temperature

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