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Mass Transfer

Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

1
∞
> 1

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Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Temperature falls
Pressure rises
Pressure falls
Temperature rises

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

Packed
Bubble
Spray
Tray

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Mass Transfer
The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same.

Heat and mass
Heat, momentum and mass
Heat and momentum
Mass and momentum

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

None of the listed here
Film
Surface renewal
Penetration

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Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

8.89
8.25
10
6.89

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