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Mass Transfer

Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

√T and T3/2
T3/2 and T
T and T3/2
T3/2 and √T

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Mass Transfer
Steam distillation is used for separation of high boiling

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

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Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
5
0.5
50

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Mass Transfer
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

ML/G
LG/m
L/mG
G/mL

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Mass Transfer
Boiling point diagram is

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

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

All of these
Composition
Temperature
Total pressure

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