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Mass Transfer

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

1
> 1
< 1
0.5

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Mass Transfer
With increase in pressure, the relative volatility for a binary system

Decreases
Increases
Remains same
Either A or B, depends on the system

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Mass Transfer
In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

Straight
Both A & B
Neither A nor B
Parallel

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Mass Transfer
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Sherwood
Stanton
Peclet
Schmidt

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Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Cylinder
Rotary
Drun
Freeze

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Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

95
91.5
90
99

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