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Mass Transfer

Mass Transfer
Ion exchange process is similar to

Extraction
Leaching
Adsorption
Absorption

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Mass Transfer
Extraction of coffee from its seed is done by

Extractive distillation
Leaching
Steam distillation
Liquid-liquid extraction

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Not required
Calculated
Known
Unknown

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Both A and B
Is one at unity value of
Increases with increase in
Neither A nor B

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Mass Transfer
A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is

0.54
1.94
1.24
1.04

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Mass Transfer
Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

None of these
Vacuum
Atmospheric
High pressure

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