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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Temperature
Both B and C
Pressure
Humidity

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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 & Partial pressure of vapour
Specific humidity

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Mass Transfer
As the reflux ratio decreases, the

Separation becomes more efficient
Number of plates increases
None of these
Column diameter increases

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Mass Transfer
In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

Azeotropic
Molecular
Flash
Extractive

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

No change in theoretical
Marginal decrease in the number of
None of the listed here
Major decrease in the number of

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Mass Transfer
Operating velocity in a packed tower is usually __________ the flooding velocity.

More than
Twice
Half
Equal to

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