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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Mass Transfer
Channelling is most severe

In towers packed with stacked packing
In towers packed randomly with crushed solids
At very high liquid flow rate
In dumped packing of regular units

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Mass Transfer
Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is

8.5 x 10⁻⁴
8.5 x 10⁻³
5.6 x 10⁻⁴
5.6 x 10⁻³

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