Mass Transfer
Which of the following assumes constant molal vaporisation and overflow?

Enthalpy concentration method
Plate absorption column
McCabe-Thiele method
Ponchan-Savarit method

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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

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

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