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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Both B and C
Humidity
Temperature
Pressure

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Mass Transfer
The commonly used solvent in supercritical extraction is

Water
Carbon tetrachloride
Carbon dioxide
Methyl ethyl ketone

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Mass Transfer
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

Remains unaffected
Decreases linearly
Decreases
Increases

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Molecular
Extractive
Steam
Azeotropic

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Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

2
1
0.6
0.5

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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)

8.25
10
8.89
6.89

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