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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Higbie
Kissinevskii
Danckwerts
Toor and Marchello

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Mass Transfer
L/mG is the expression for

Brinkman number
Absorption factor
Slope of operating line in stripper
Slope of operating line in absorber

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Mass Transfer
In distillation, overhead product contains

Only saturated liquid
Any number of components
Only one component
Two components

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

9.21
100
4.605
0.001

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

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

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S = 1
S > 1
S = ∞
S < 1

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