Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Pressure
Temperature
None of the listed here
Both Pressure & Temperature

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Mass Transfer
Entrainer used in azeotropic distillation should

Form a low boiling azeotrope with one of the constituents of the mixture
Have high latent heat of vaporisation
Form a new azeotrope of low relative volatility with one of the constituents of the mixture
Have high viscosity to provide high tray efficiency

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