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Mass Transfer

Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

1
> 1
0.5
< 1

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Mass Transfer
Lewis number (Le) is

St x Sh
Sc x Pr
Sh x Pr
Pr x St

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Major decrease in the number of
No change in theoretical
Marginal decrease in the number of
None of the listed here

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S = 1
S < 1
S > 1
S = ∞

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

Activated clay
Silica gel
Wood charcoal
Bone charcoal

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Mass Transfer
The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

√T
T3
T1.5
T

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MORE MCQ ON Mass Transfer

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