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Mass Transfer

Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

1
0.5
> 1
< 1

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.53
Re
Re0.83
Re0.33

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Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Increased reflux ratio
None of these
Increased reboiler load
Greater degree of separation with a fixed number of trays

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Mass Transfer
Dorr thickener is an equipment used for

Leaching
Clarification
Classification
Sedimentation

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Mass Transfer
Molecular seives are regenerated by heating to __________ °C.

> 500
< 150
> 1000
200-330

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Vacuum
Long tube
Short tube
Falling film

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