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Mass Transfer

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

> 1
1
0.5
< 1

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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.

Unbound
Free
Equilibrium
Bound

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Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

SO₂ in alkaline solution
Benzol present in coke oven gas by wash oil
All of these
Ammonia in water

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Mass Transfer
A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

21.7
20
18.7
27.3

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

Litre
Gm
m³
Kg

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Mass Transfer
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Sherwood
Schmidt
Peclet
Stanton

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