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Mass Transfer

Mass Transfer
Stefan's law describes the mass transfer by

Neither A nor B
Both A & B
Bulk flow
Diffusion

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Mass Transfer
As the reflux ratio decreases, the

Number of plates increases
Column diameter increases
Separation becomes more efficient
None of these

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Both A and B
Neither A nor B
Increases with increase in
Is one at unity value of

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Mass Transfer
Langmuir equation is associated with

Steam distillation
Multicomponent absorption
Leaching
Adsorption

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Mass Transfer
The cooling effect in a cooling tower can not be increased by

Increasing the air velocity over the wet surfaces
Reducing the humidity of entering air
Lowering the barometric pressure
None of these

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Mass Transfer
What is the reflux ratio at total reflux?

Data insufficient
Infinity
Zero
Unity

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