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Mass Transfer

Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Bubble
Spray
Tray
Packed

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Mass Transfer
At a fixed total pressure, humidity depends only on the

Density of the vapour
Heat capacity of the vapour
Partial pressure of vapour in the mixture
None of these

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Mass Transfer
Milk is dried usually in a __________ dryer.

Rotary
Spray
Tray
Freeze

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Mass Transfer
To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)

Increase both 'G' and 'S'
Decrease both 'G' and 'S'
Increase 'G' and decrease 'S'
Increase 'S' and decrease 'G'

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Mass Transfer
Drift in a cooling tower is

The water entrained by the circulating air
All of these
Desirable
Dependent on the water lost by evaporation

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Calculated
Known
Unknown
Not required

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