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Mass Transfer

Mass Transfer
The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate.

Both A & B
Neither A nor B
Above
Across

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Mass Transfer
Steam distillation is used for separation of high boiling

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

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

Maximum permissible
Total
Minimum
Operating

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan
Toor and Marchello
Fick
Danckwerts

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Mass Transfer
If moisture content of solid on dry basis is X, then the same on wet basis is

(X - 1)/X
X/(X + 1)
(X + 1)/X
X/(X - 1)

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Mass Transfer
Which of the following equipments is not used for gas dispersion?

Bubble cap tray towers
Perforated sieve tray towers
Spray towers
Agitated vessels

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