Mass Transfer
__________ is concerned with the adsorption equilibria.

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

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Mass Transfer
As the reflux ratio in a distillation coloumn is increased from the minimum, the

Liquid flow increases while the vapor flow decreases for a system
Slope of the operating line in stripping section decreases
Total cost first decreases and then increases
Number of plates decreases very slowly first and then more and more rapidly

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