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Mass Transfer

Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

+ ve
- ve
-1
1

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Mass Transfer
Lewis number (Le) is

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

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Long tube
Vacuum
Falling film
Short tube

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Mass Transfer
In azeotropic mixture, the equilibrium vapour composition is

Less than liquid composition
More than liquid composition
None of the listed here
Same as liquid composition

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Mass Transfer
At minimum reflux ratio for a given separation

Number of plates is infinity
Number of plates is zero
Minimum number of the theoretical plates is required
Separation is most efficient

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

Extractive
Molecular
Steam
Simple

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