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Mass Transfer

Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the pressure (P) as

D ∝ 1/P1.5
D ∝ 1/P
D ∝ 1/P0.5
D ∝ P0.5

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Mass Transfer
Which of the following same diameter columns gives lowest pressure drop per unit height?

Bubble-cap column
Sieve-plate column
Randomly packed column
Packed column (stacked)

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Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Kg
Litre
Gm
c

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

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

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Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Silica gel
Activated clay
Wood charcoal
Bone charcoal

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Mass Transfer
The rate of mass transfer is not dependent upon the

Both A & B
Interfacial surface exposed between the phases
None of these
Degree of dispersion of one fluid in the other

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