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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

More
Less
Same
Unpredictable

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Decreased liquid viscosity
Neither A nor B
Increased diffusivity
Both A & B

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Mass Transfer
Flooding in a column results due to

High temperature
Low pressure drop
High pressure drop
Low velocity of the liquid

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Mass Transfer
Large scale drying of wheat is done in a __________ dryer.

Vacuum rotary
Tray
Fluidised bed
Spouted bed

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Mass Transfer
For a distillation column operating at minimum reflux, the

Concentration of liquid and vapour leaving a plate will be same
Number of plates required will be maximum
None of these
Reflux ratio will be maximum

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Mass Transfer
Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method?

Reboiler
Partial condenser
Both B and C
Total condenser

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