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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Evaporator
Distillation column
Dryer
Crystalliser

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Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

Grashoff
Sherwood
None of these
Lewis

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

None of these
Film
Penetration
Surface-renewal

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Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- 1/f
- f/(1 - f)
- (f - 1)/f
(1 - f)/f

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

Neither A nor B
Both A & B
Above
Across

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Mass Transfer
L/mG is the expression for

Slope of operating line in absorber
Brinkman number
Slope of operating line in stripper
Absorption factor

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