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Mass Transfer

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

?
1
None of these

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Mass Transfer
Binary distillation involves the mass transfer by __________ at the gas-liquid interface.

Unidirectional diffusion from gas to liquid phase
Unidirectional diffusion from liquid to gas phase
A counter diffusion at an almost equal molar rate
Either A or B

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Mass Transfer
Sand is dried in foundaries in a___drier.

Vacuum
Spray
Rotary
Fluidisedbed

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Mass Transfer
Large scale usage of flash distillation is practised in

Polymerisation industry
Petroleum refinning
Soap manufacturing
Ammonia synthesis plant

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Mass Transfer
Which of the following is the most suitable for extraction in a system having very low density difference?

Packed extraction tower
Pulsed extractor
Mixer-settler extractor
Centrifugal extractor

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Mass Transfer
Can a cooling tower cool water below the wet bulb temperature of inlet air?

No
Yes ; but the air flow rate should be excessively high
Yes ; but height of cooling tower will be prohibitively high
Yes

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