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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

Alumina
Heated charcoal
Cold Ca(OH)₂
Hot cupric oxide

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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
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.

Either A, or B ; depends on the type of packing
Smaller than
Equal to
Greater than

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Azeotropic
Molecular
Steam
Extractive

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Mass Transfer
Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

Higher dew point
Higher absolute (specific) humidity
Higher relative humidity
Higher wet bulb temperature

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

1
> 1
∞

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