Mass Transfer
Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture.

Free
Critical
Unbound
Bound

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Mass Transfer
Which of the following processes is not an example of adsorption applied to gaseous separations?

Recovery of valuable solvent vapors from dilute mixture with air and other gases
Decolouration of yellow glycerene
Removal of objectionable odour and impurities from industrial gases
Dehumidification of air and gas

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