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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Fluidised bed
Cylinder
Rotary
Spray

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Mass Transfer
In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as

Ri = Re/(1 - Re)
Ri = (1 - Re)/Re
Ri = Re
Ri = Re/(1 + Re)

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Mass Transfer
Fractional solvent extraction

Results in low interfacial tension
None of the listed here
Employs only one solvent
Employs two solvents

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Mass Transfer
Diameter to height ratio for a rashig ring is

2
5
0.5
1

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Mass Transfer
'ADDUCTS' and 'CLATHRATES' are used in case of

Extractive distillation
Absorption
None of these
Crystallisation

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Mass Transfer
Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature)

P vs . log T
T vs . P
Log P vs . T
Log P vs. log T

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