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Mass Transfer

Mass Transfer
The-relative volatility for separation of a non-ideal binary mixture by distillation should be

< 1
> 1
1

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Mass Transfer
Air at a particular humidity is heated in a furnace. The new dew point

Remain unchanged
Increases
Depends on the extent of heating
Decreases

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Mass Transfer
Tower diameter may be decreased by

Increasing the vapour flow rate
Using higher reflux ratio
Increasing the liquid flow rate
Use of increased tray spacing

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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

∞
1
0.5
2

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Mass Transfer
An azeotropic mixture is a __________ mixture.

Constant boiling point
Binary
None of these
Ternary

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Mass Transfer
Fenske equation determines the

Height of the distillation column
Minimum number of theoretical plates
Optimum reflux ratio
Maximum number of ideal plates

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