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Mass Transfer

Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Kg
Gm
Litre
c

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Mass Transfer
Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

None of these
Atmospheric
Vacuum
High pressure

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Nature of the solid
Nature of the moisture
Temperature
All of these

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Mass Transfer
Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )

P < P
P = P
P
P >>P

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Mass Transfer
Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes?

Wetted wall columns
Packed towers
Spray towers
Plate towers

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Mass Transfer
Which of the following same diameter columns gives lowest pressure drop per unit height?

Bubble-cap column
Sieve-plate column
Randomly packed column
Packed column (stacked)

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