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Mass Transfer

Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

> 1
10-5 to 10-6
0.1
0.01

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Mass Transfer
Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture.

Equilibrium
Unbound
Bound
Free

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Mass Transfer
Boiling point diagram is

A plot of temperature vs. vapour composition
Affected by pressure
Not affected by pressure
A plot of temperature vs. liquid composition

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Mass Transfer
Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method?

Total condenser
Reboiler
Both B and C
Partial condenser

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Mass Transfer
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by

Evaporation
Absorption
Solvent extraction
Continuous distillation

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Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Straight line
None of these
Slightly concave upward
Slightly concave downward

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