Mass Transfer
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by

Solvent extraction
Absorption
Continuous distillation
Evaporation

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Mass Transfer
In case of a desorber (stripper), the

Temperature always increases
Operating line always lies below the equilibrium curve
Operating line always lies above the equilibrium curve
Temperature remains unaffected

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Mass Transfer
Plate efficiency

Increases due to weeping and dumping of liquid
Increases due to liquid entrainment
Increases due to foaming
Is a function of the mass transfer between liquid and vapour

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Mass Transfer
One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect

The product composition as well as the fraction vaporised
Neither the product composition nor the fraction vaporised
The fraction vaporised but not the product composition
The product composition but not the fraction vaporised

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