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Mass Transfer

Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Tunnel
Festoon
Heated cylinder
Conveyor

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Mass Transfer
Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )

P
P >>P
P = P
P < P

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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.

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

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Remain unaffected
Decrease or increase ; depends on the type of liquid
Decrease
Increase

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Osmosis
Elution
Sublimation
Reverse osmosis

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Mass Transfer
In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed

q < 1
q = 1
q = 0
q > 1

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