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Mass Transfer

Mass Transfer
The unit of volumetric diffusivity is

Cm/sec
Cm²/seC₂
Cm³/sec
Cm²/sec

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

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

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Mass Transfer
In which of the following unit operations, the selectivity is an important parameter?

None of these
Absorption
Distillation
Solvent extraction

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Mass Transfer
Desirable value of absorption factor in an absorber is

1
0.5
< 1
> 1

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Bubble cap
Sieve plate
Pulse

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Mass Transfer
Wetted wall tower experiment determines the

None of these
Volumetric co-efficient
Mass transfer co-efficient
Molal diffusivity

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