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Mass Transfer

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

Neither A nor B
Above
Across
Both A & B

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.53
Re
Re0.33
Re0.83

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Mass Transfer
Extraction of coffee from its seed is done by

Liquid-liquid extraction
Extractive distillation
Steam distillation
Leaching

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Mass Transfer
Which of the following remains constant during sensible cooling process ?

None of the listed here
Specific humidity
Partial pressure of vapour
Specific humidity & Partial pressure of vapour

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Major decrease in the number of
No change in theoretical
None of the listed here
Marginal decrease in the number of

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Mass Transfer
The binary diffusivity in gases does not depend upon the

Pressure
None of the listed here
Nature of the components
Temperature

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