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Mass Transfer

Mass Transfer
The unit of volumetric diffusivity is

Cm/sec
Cm²/seC₂
Cm²/sec
Cm³/sec

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Mass Transfer
Flash distillation is suitable for the separation of components

Having very wide boiling points
Which form minimum boiling azeotrope
Which form maximum boiling azeotrope
Having very close boiling points

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Mass Transfer
Antibiotics are best handled in a

Podbielniak extractor
Pulsed column extractor
Sieve tray contractor
Rotating disc contactor

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Mass Transfer
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is

Equal to the heat of formation of surface compound
Zero
Called integral heat of adsorption
Equal to the heat of wetting

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

Neither A nor B
Parallel
Straight
Both A & B

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Mass Transfer
The operating cost of a distillation column at minimum reflux ratio is

Maximum
Minimum
Infinite
Zero

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