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Mass Transfer

Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
50
5
0.5

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

No change in theoretical
Marginal decrease in the number of
Major decrease in the number of
None of the listed here

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Mass Transfer
Which of the following is a suitable absorbent for removal of H₂S from natural gas?

Hot water
Monoethanol amine (MEA)
Dilute
Vetrocoke solution

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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.

Bubble
Packed
Tray
Spray

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Mass Transfer
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by

Absorption
Solvent extraction
Evaporation
Continuous distillation

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Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F > 1
0 < f < 1
F < 1
F = 1

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