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Mass Transfer

Mass Transfer
Schmidt number is given by

Μ/ρDAB
Re.Pe
Re/Pe
Sh x Pe

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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.

Bound
Free
Unbound
Critical

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Mass Transfer
For which of the following unit operations, Lewis number is of significance?

Humidification
Binary distillation
Adsorption
Gas absorption

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions and isothermal operation
Dilute solutions
None of these
Isothermal operation

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Mass Transfer
Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty?

Grid tray tower
Wetted wall tower
Bubble cap tower
Perforated tray tower

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Mass Transfer
Fractional solvent extraction

None of the listed here
Results in low interfacial tension
Employs only one solvent
Employs two solvents

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