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Mass Transfer

Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

90
95
91.5
99

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

Film
Surface renewal
None of the listed here
Penetration

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Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Straight line
Slightly concave upward
Slightly concave downward
None of these

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Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Temperature rises
Pressure falls
Temperature falls
Pressure rises

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Mass Transfer
With increase in pressure, the relative volatility for a binary system

Increases
Remains same
Either A or B, depends on the system
Decreases

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

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

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