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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Steam
Continuous
Flash
Differential

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Mass Transfer
In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

> 8:1
> 4 :1
< 8 : 1
< 6:1

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Mass Transfer
In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

1/T
T
T²
√T

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

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

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Mass Transfer
With increase in temperature, the rate of leaching increases, because the

Thermal conductivity of solute increases
Diffusivity of solute increases
Viscosity of solvent decreases
None of these

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

None of these
Decreases
Remains unchanged
Increases

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