Mass Transfer
Solvent used in extractive distillation

Forms a high boiling azeotrope
Is of low volatility
Does not alter the relative volatility of the original components
Forms a low boiling azeotrope

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Mass Transfer
In saturated gas, the

Vapour is in equilibrium with the liquid at the room temperature
Partial pressure of vapour equals the vapour pressure of the liquid at room temperature
None of the listed here
Vapour is in equilibrium with the liquid at the gas temperature

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Mass Transfer
In case of an absorber, the operating

Line always lies above the equilibrium curve
Line always lies below the equilibrium curve
Line can be either above or below the equilibrium curve
Velocity is more than the loading velocity

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