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Mass Transfer

Mass Transfer
__________ developed the film theory.

Ergun
Levenspeil
Fick
Higbie

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory.

None of these
Film
Surface renewal
Penetration

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Mass Transfer
Unit operation involved in the prilling of urea is

Drying
Crystallisation
Evaporation
Both B and C

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Mass Transfer
As per Gilliland's equation, the diffusivity is

Directly proportional to 'T1.5'
Inversely proportional to 'P'
Dependent on the molecular volume & molecular weight of components
All of these

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Mass Transfer
Which of the following provides maximum contact surface for a liquid-vapour system?

Packed tower
Seive-plate column
Bubble-cap plate column
Wetted wall column

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Dew point
Wet-bulb
Adiabatic saturation
Dry-bulb

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