Mass Transfer
Dew point of an air-water vapor mixture

Decreases with decrease in pressure
All of the listed here
Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve
At constant humidity & total pressure is fixed

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Mass Transfer
Blowdown in a cooling tower

Is undesirable
Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities
All of these
Increases the scale forming tendencies of water

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Mass Transfer
The wetted wall tower is used to determine

M.T.C. of liquid in liquid-gas system
M.T.C. of individual components in a liquid-liquid system
The overall M.T.C. of the system
Individual mass transfer co-efficient (M.T.C.) in gaseous system

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