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Mass Transfer

Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Pressure
Thermal
Concentration
Forced

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Mass Transfer
Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure.Nitrobenzene will distill off __________ °C.

At < 100
Between 100 and 210
None of the listed here
At > 210.6

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Mass Transfer
The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Momentum diffusivity to the thermal diffusivity
None of these
Thermal diffusivity to the mass diffusivity
Momentum diffusivity to the mass dif-fusivity

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Mass Transfer
As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches

Integral heat of adsorption
Zero
That of normal condensation
None of these

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Mass Transfer
Removal of __________ exemplifies an adsorption unit operation.

Uranium from its ore
Ammonia from coke oven gas
None of the listed here
Water from petrol

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Mass Transfer
In distillation columns, the number of bubble caps per tray primarily depends upon the

Allowable gas and liquid velocities
Allowable liquid velocity
Feed composition
Allowable gas velocity

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