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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Differential
Flash
Continuous
Steam

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Mass Transfer
The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate.

Above
Both A & B
Across
Neither A nor B

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Mass Transfer
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

22190
43835
> 500
200-300

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

High pressure
Atmospheric
None of these
Vacuum

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Mass Transfer
Which of the following quantities need not be fixed before starting the design of a co-current absorber?

Flow rate of gas
None of the listed here
Heat gain or loss
Flow rate of entering liquid

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Mass Transfer
Which of the following operations does not involve leaching?

Dissolving gold from ores
Removing nicotine from its water solution by kerosene
Dissolving sugar from the cells of the beet
Dissolving pharmaceutical products from bark or roots

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