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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Humidity
Temperature
Pressure
Both B and C

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

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

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Mass Transfer
An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is

0.079
0.122
0.152
0.048

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Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

None of the listed here
Podbielniak
Schiebel
Treybal

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Mass Transfer
If a₁ and a₂ are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement.

a₁ = 2a₂
None of these
a₁ = 0.5 a₂
a₁ = a₂

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Mass Transfer
Separation of two volatile liquids by distillation makes use of their

Relative volatility
Solubility
Selectivity
Density difference

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