Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Induced draft cooling tower
None of these
Natural draft cooling tower
Spray chamber

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Mass Transfer
For absorbing a sparingly soluble gas in a liquid

Liquid side mass transfer co-efficient should be increased
Gas side mass transfer co-efficient should be increased
Liquid side mass transfer co-efficient should be decreased
Mass transfer co-efficient must be kept constant

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