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Mass Transfer

Mass Transfer
__________ column is used in gas absorption process.

Seive/perforated tray
Packed
Bubble cap
Wetted wall

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Operating
Maximum permissible
Total
Minimum

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Mass Transfer
Mechanism of moisture removal in case of freeze drying of food stuff is by

Dehydration
Sublimation
Evaporation
Adsorption

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Mass Transfer
The caking of crystals can be prevented by

Maintaining low critical humidity
Coating the product with inert material
Maintaining high critical humidity
Both A and C

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

Blowdown and leakage
Drift
Evaporation
All of these

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Increases
Remains unchanged
Decreases
Decreases exponentially

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