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Mass Transfer

Mass Transfer
What is the reflux ratio at total reflux?

Unity
Infinity
Data insufficient
Zero

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Dew point
Neither A nor B
Both A & B
Wet bulb

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Mass Transfer
The operating cost of a distillation column at minimum reflux ratio is

Maximum
Minimum
Zero
Infinite

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Mass Transfer
Radioactive nuclear waste is treated in

Pulsed column extractor
Rotating-disc contactor
Bollman extractor
Mixer-settler extractor

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Mass Transfer
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

Degree of turbulence
Chemical properties
Interfacial area
Physical properties

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Mass Transfer
Large scale usage of flash distillation is practised in

Soap manufacturing
Ammonia synthesis plant
Petroleum refinning
Polymerisation industry

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