Mass Transfer
The term "cooling range" in a cooling tower refers to the difference in the temperature of

Hot water entering the tower and the wet bulb temperature of the surrounding air
Hot water entering the tower and the cooled water leaving the tower
None of the listed here
Cold water leaving the tower and the wet bulb temperature of the surrounding air

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Mass Transfer
In case of an absorber, the operating

Line always lies above the equilibrium curve
Velocity is more than the loading velocity
Line always lies below the equilibrium curve
Line can be either above or below the equilibrium curve

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