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Mass Transfer

Mass Transfer
Small dia distillation column can be a

Packed column
Sieve tray
Any of these
Bubble cap

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Mass Transfer
Rose oil is extracted from rose leaves using __________ distillation.

Extractive
Steam
High pressure
Low pressure

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Mass Transfer
In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

> 4 :1
< 8 : 1
< 6:1
> 8:1

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Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F > 1
F = 1
0 < f < 1
F < 1

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

Half
Equal to
More than
Twice

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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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