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Mass Transfer

Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

99
95
91.5
90

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Mass Transfer
Cox chart is useful in the design of

Crystalliser
Distillation column
Dryer
Evaporator

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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Improved flooding characteristics
Rapid absorption rates and good heat transfer characteristics
All of these
Low pressure drop on pumping

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Mass Transfer
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

None of these
?
1

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Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Increased reflux ratio
None of these
Greater degree of separation with a fixed number of trays
Increased reboiler load

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.83
Re
Re0.53
Re0.33

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