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Mass Transfer

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

∞
> 1
1

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Mass Transfer
Perforated plate towers are unique for solvent extraction because, they provide

Higher contact area
None of these
Better contact of the phase
Repeated coalescence & redispersion of the drop phase

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Decreases
Decreases exponentially
Increases
Remains unchanged

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Mass Transfer
For contacting a highly soluble gas with a liquid

Spray the liquid on gas stream
None of the listed here
Bubble the gas through liquid
Both of the options given here

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Mass Transfer
Molecular diffusivity of a liquid

Decreases with temperature
Is independent of temperature
Increases with temperature
May increase or decrease with temperature

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Mass Transfer
On addition of solute in the solvent, the __________ of the solution decreases.

Boiling point
Freezing point
Vapour pressure
Both B and C

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