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Mass Transfer

Mass Transfer
According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to

2f
F
1/f
F/2

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.83
Re0.53
Re0.33
Re

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Mass Transfer
Chemisorption compared to physical absorption has

None of these
Lower capacity of the solvent for the solute gas
Increased utilisation of stagnant zones of the liquid phase
Lower adsorption rate

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

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

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

Water-ethyl alcohol
Acetone-carbon disulphide
Water-hydrochloric acid
None of the listed here

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Mass Transfer
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Peclet
Sherwood
Schmidt
Stanton

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