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Mass Transfer

Mass Transfer
An azeotropic mixture is a __________ mixture.

Constant boiling point
None of these
Binary
Ternary

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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)

Parallel
Straight
Neither A nor B
Both A & B

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Mass Transfer
Reverse osmosis is also called

Diffusion
Dialysis
Ultrafiltration
Electrodilysis

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Mass Transfer
McCabe-Thiele method of binary distillation does not assume that the

Heat of mixing is negligible
Molar latent heats of all components are equal
None of these
Sensible heat changes are negligible compared with latent heat changes

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Mass Transfer
If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.

3 to 4
5
2.5 to 3
1.2 to 1.5

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

90
95
91.5
99

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