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Mass Transfer

Mass Transfer
__________ developed the film theory.

Higbie
Levenspeil
Ergun
Fick

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Decreases
None of these
Remains unchanged
Increases

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Mass Transfer
Danckwerts developed the __________ theory.

Penetration
Film
Surface renewal
None of these

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Total
Minimum
Maximum permissible
Operating

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Increases
Passes through a maximum
Decreases
Remains unaffected

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Mass Transfer
For which of the following unit operations, Lewis number is of significance?

Binary distillation
Humidification
Gas absorption
Adsorption

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