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Mass Transfer

Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

-ve
∞
+ve

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Mass Transfer
If the amount of the steam used in steam distillation is increased, the temperature of distillation

Remains unchanged
Decreases
Increases
Depends on relative volatility

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Mass Transfer
The relative volatility of a binary mixture at constant temperature __________ the total pressure.

None of these
Increases with increase in
Is independent of
Decreases with increase in

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Mass Transfer
Degree of freedom for leaching and solvent extraction process is

3
1
2

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Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Ion-exchange
Absorption
Rectification

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Mass Transfer
Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are

8
1
10
9

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