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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Distillation column
Dryer
Crystalliser
Evaporator

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Mass Transfer
In McCabe-Thiele method, at infinite reflux ratio

Neither A nor B
Both A & B
Both the operating lines coincide with diagonal
The overhead product is minimum

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Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

Very much less
Less than
Same as
More than

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Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

6.89
8.25
10
8.89

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Mass Transfer
Reboiler is considered as one theoretical plate, because

Vapour is recycled to the column
Of the assumption that vapour and liquid leaving the reboiler are in equilibrium
None of these
Reboiler itself contains one plate

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Solid-liquid extraction
Multicomponent distillation
Multicomponent absorption with chemical reaction
Liquid-liquid extraction

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