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Mass Transfer

Mass Transfer
Desirable value of absorption factor in an absorber is

1
0.5
> 1
< 1

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Mass Transfer
Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

K ∝ D1.5
K ∝ D2
K ∝ √D
K ∝ D

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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

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

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Mass Transfer
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

Decreases
Remains unchanged
May increase or decrease, depends on the system
Increases

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Mass Transfer
As the reflux ratio increases, the slope of the operating line for rectifying section

Data insufficient, cannot be predicted
Remains constant
Increases
Decreases

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

95
99
90
91.5

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