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Mass Transfer

Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

0.5
1
< 1
> 1

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Mass Transfer
The most common packing used in industrial operations is __________ rings.

Raschig
Lessing
Single spiral
Cross-partition

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Mass Transfer
__________ extractor is used for the concentration of radioactive nuclear waste.

Pulsed column
Seive plate
Mixer-settler
None of the listed here

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Mass Transfer
During constant rate period, the rate of drying decreases with the

Increase in air humidity
Decrease in air temperature
Neither A nor B
Both A & B

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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
Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.

None of these
Bound
Unbound
Critical

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