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Mass Transfer

Mass Transfer
If f is defined as above, then which of the following applies to a feed at dew point?

F = 1
F > 1
F < 1
0 < f < 1

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

None of these
Percentage
Molal
Relative

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory.

Surface renewal
Film
Penetration
None of these

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Both Pressure & Temperature
Pressure
None of the listed here
Temperature

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Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of Hâ‚‚/ky.Cz is around

0.6
0.24
1
0.72

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Mass Transfer
Reverse osmosis is also called

Dialysis
Diffusion
Ultrafiltration
Electrodilysis

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