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Mass Transfer

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

95
90
99
91.5

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Molecular
Simple
Steam
Extractive

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Mass Transfer
Rotary dryers cannot handle __________ materials.

Sticky
Grannular
Free flowing
Dry

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Mass Transfer
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will

Remain same
Decrease
Increase
Data insufficient, can't be predicted

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Passes through a maximum
Remains unaffected
Decreases
Increases

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Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Optimum
Infinite
None of these
Minimum

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