Mass Transfer
Freundlich equation applies to the adsorption of solute from

Dilute solutions, over a small concentration range
Concentrated solutions
None of these
Gaseous solutions at high pressure

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Mass Transfer
Relative humidity is the ratio of the

None of these
Actual humidity to saturation humidity
Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature
Partial pressure of the vapour to the vapour pressure of the liquid at room temperature

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