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Mass Transfer

Mass Transfer
Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer.

Vacuum
Tunnel
Tray
Rotary

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Mass Transfer
The binary diffusivity in gases does not depend upon the

None of the listed here
Pressure
Nature of the components
Temperature

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Mass Transfer
Steam distillation is used for separation of high boiling

Volatile impurity from still higher boiling substances
Both of the options given here
none of the listed here
Substances from non-volatile impurities

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

100
None of these
78
50

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Mass Transfer
Ammonia present in the coke oven gas is removed by washing with

Ethanolamine
Caustic solution
Dilute ammoniacal liquor
Dilute HCl

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Mass Transfer
As the reflux ratio decreases, the

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

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