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Mass Transfer

Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Silica gel
Alumina
Activated carbon
Fuller

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Mass Transfer
For a distillation column operating at minimum reflux, the

Reflux ratio will be maximum
None of these
Concentration of liquid and vapour leaving a plate will be same
Number of plates required will be maximum

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

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

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Mass Transfer
Smoke is an example of

Solid dispersed in gas
Liquid dispersed in gas
Solid dispersed in liquid
Gas dispersed in liquid

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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
Extraction of pencillin employs a __________ extraction coloumn.

Centrifugal
Packed
None of these
Plate

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