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Mass Transfer

Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

-0.6
0.6
-1.5
1.5

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Mass Transfer
In stripping section of continuous distillation column, the

Vapour is stripped of low boiler
None of these
Liquid is stripped of high boiler
Liquid is enriched with high boiler

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Mass Transfer
Which of the following is an undesirable characteristic for the solvent used in gas absorption?

Low vapor pressure
None of these
Low viscosity
High gas solubility

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Mass Transfer
For a binary mixture with low relative volatility, continuous rectification to get pure products will require

Less number of trays
High reflux ratio
Low reflux ratio
Small cross-section column

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Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

2f
F
F/2
1/f

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Mass Transfer
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.

Either A, or B ; depends on the type of packing
Smaller than
Greater than
Equal to

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