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Mass Transfer

Mass Transfer
Deairation (removal of O₂) of water is done by

Ion-exchange
Adsorption
Absorption
Rectification

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Mass Transfer
Very tall packed towers are divided into series of beds to

Avoid flooding
Reduce the overall pressure drop
Avoid channelling
Reduce liquid hold-up

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Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

1
< 1
∞

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Mass Transfer
Flash distillation is suitable for the separation of components

Which form maximum boiling azeotrope
Which form minimum boiling azeotrope
Having very wide boiling points
Having very close boiling points

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Mass Transfer
Paper industry employs __________ driers.

Fluidised bed
Rotary
Spray
Cylinder

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

Vapor load
None of the listed here
Drift
Blow down

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