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Mass Transfer

Mass Transfer
Diameter to height ratio for a rashig ring is

5
1
2
0.5

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

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

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Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

None of the listed here
Podbielniak
Schiebel
Treybal

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Mass Transfer
Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure.Nitrobenzene will distill off __________ °C.

Between 100 and 210
At < 100
At > 210.6
None of the listed here

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Mass Transfer
Acetic acid will be most economically separated from a dilute solution of acetic acid in water by

Evaporation
Continuous distillation
Solvent extraction
Absorption

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Mass Transfer
Which of these columns incurs the lowest pressure drop?

Pulse column
Packed column (with stacked packing)
Packed column (with dumped packing)
Bubble plate column

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