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Mass Transfer

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

Dehydration
Evaporation
Adsorption
Sublimation

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Mass Transfer
Dorr thickener is an equipment used for

Clarification
Leaching
Classification
Sedimentation

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Mass Transfer
The percentage humidity is less than the relative humidity only at __________ percent humidity.

Hundred
Zero
None of these
Both zero and hundred

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Mass Transfer
Extraction of coffee from its seed is done by

Steam distillation
Leaching
Extractive distillation
Liquid-liquid extraction

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = NLe
NSc = 1
NSc = NPr = NLe
NPr = NLe

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Total pressure
All of these
Temperature
Composition

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