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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Both B and C
Pressure
Humidity
Temperature

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Mass Transfer
Equilibrium-moisture curves of different solids

None of these
Are different
Are same
Depend on the humidity of the gas

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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

1.94
1.24
0.54
1.04

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Mass Transfer
On addition of solute in the solvent, the __________ of the solution decreases.

Freezing point
Vapour pressure
Boiling point
Both B and C

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Parallel
Straight
Neither A nor B
Both A & B

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Sublimation
Elution
Reverse osmosis
Osmosis

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