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Mass Transfer

Mass Transfer
Small dia distillation column can be a

Any of these
Sieve tray
Bubble cap
Packed column

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Mass Transfer
Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second.

5 to 10
> 10
1 to 5
1

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Mass Transfer
Operating velocity in a packed tower is usually __________ the flooding velocity.

Half
More than
Equal to
Twice

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Unknown
Known
Calculated
Not required

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Mass Transfer
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

T1.5
√T
T
T3

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Mass Transfer
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

Viscosity
Solubility
Density
Relative volatility

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MORE MCQ ON Mass Transfer

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