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Mass Transfer

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

F
1/f
F/2
2f

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Mass Transfer
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

> 100
100
None of these
< 100

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Mass Transfer
Which of the following solutions will follow Raoult's law most closely?

35% solution of camphor in water
A solution of polar organic compounds (not of homologs of a series)
A solution of benzene, toluene and oxylene
35% solution of NH₃ in water

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

∞
0.5
1
2

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Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Same as
Higher than
Either same or higher than
Lower than

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Simple
Steam
Extractive
Molecular

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