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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
Gaseous diffusion co-efficient increases with increase in the

Temperature
Both Pressure & Temperature
None of the listed here
Pressure

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Mass Transfer
_______ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

Stanton
Peclet
Lewis
Sherwood

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Operating
Maximum permissible
Total
Minimum

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Mass Transfer
Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.

Does not affect
Decreases
Increases
Exponentially increases

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

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

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