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Mass Transfer

Mass Transfer
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

Unpredictable
More
Less
Same

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Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Unbound
Equilibrium
Bound
Free

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Mass Transfer
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

Low pressure drop and low hold up
High pressure drop and high hold up
Low pressure drop and high hold up
High pressure drop and low hold up

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Neither A nor B
Is one at unity value of
Increases with increase in
Both A and B

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Decreases
Increases
Increases Linearly
Remains unaffected

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

Water-ethyl alcohol
None of the listed here
Water-hydrochloric acid
Acetone-carbon disulphide

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