Mass Transfer
__________ is concerned with the adsorption equilibria.

Gibb's equation
Freundlich equation
None of these
Fick's law

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Mass Transfer
In case of an absorber, the operating

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

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Mass Transfer
Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the

Mixture (to be separated) shows negative deviation from ideality
Multicomponent distillation is involved
Relative volatility is reasonably constant
Mixture (to be separated) shows positive deviation from ideality

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