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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Crystalliser
Evaporator
Dryer
Distillation column

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Mass Transfer
__________ column is used in gas absorption process.

Wetted wall
Bubble cap
Seive/perforated tray
Packed

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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
1.24
1.04
1.94

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Mass Transfer
Which of the following increases during evaporative cooling process with recirculated water supply?

Wet bulb temperature
Both B and C
Relative humidity
Partial pressure of vapour

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Mass Transfer
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

Temperature and pressure
None of these
Nature of the constituents
Concentration

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

Sublimation
Elution
Osmosis
Reverse osmosis

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