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Mass Transfer

Mass Transfer
Stefan's law describes the mass transfer by

Bulk flow
Both A & B
Neither A nor B
Diffusion

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Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

10-5 to 10-6
0.01
0.1
> 1

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Increases
Decreases
Decreases exponentially
Remains unchanged

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Mass Transfer
Which of the following plays an important role in problems of simultaneous heat and mass transfer?

Sherwood number
Prandtl number
Schmidt number
Lewis number

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Mass Transfer
Which of the following equipments is not used for gas dispersion?

Agitated vessels
Spray towers
Bubble cap tray towers
Perforated sieve tray towers

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Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

≤ 1
1
> 1
< 1

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