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Mass Transfer

Mass Transfer
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

LG/m
L/mG
G/mL
ML/G

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Mass Transfer
As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches

Integral heat of adsorption
That of normal condensation
None of these
Zero

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

Increases
Depends on the extent of heating
Decreases
Remain unchanged

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Mass Transfer
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

More
Less
Equal
Either A or B; depends on the packing height

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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 paper industry, paper is dried in a __________ dryer.

Tunnel
Heated cylinder
Conveyor
Festoon

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