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Mass Transfer

Mass Transfer
Pore size of the molecular seive 5A is __________ mm.

0.05
5
50
0.5

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Mass Transfer
Overall efficiency of the distillation column is

Always more than the point efficiency
Same as the Murphree efficiency
The ratio of number of actual plates to ideal plates
The ratio of number of ideal plates to actual plates

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Mass Transfer
Water entrained by circulating air in cooling towers is termed as

Blow down
Drift
Vapor load
None of the listed here

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Mass Transfer
NSc/NPr is called the

Lewis number
Stantan number
Sherwood number
Psychrometric ratio

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Mass Transfer
Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

S₁ x S₂
S₂/S₁
S₁/S₂
S₁ - S₂

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Mass Transfer
Boiling point diagram is

Not affected by pressure
A plot of temperature vs. vapour composition
Affected by pressure
A plot of temperature vs. liquid composition

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