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Mass Transfer

Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of H₂/ky.Cz is around

0.6
0.24
1
0.72

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Mass Transfer
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

None of these
Temperature and pressure
Concentration
Nature of the constituents

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Mass Transfer
At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Is lower than
Is greater than
Is same as
Cannot be predicted as data are insufficient

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Wet-bulb
Dry-bulb
Dew point
Adiabatic saturation

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Increases with increase in
Is one at unity value of
Neither A nor B
Both A and B

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Mass Transfer
The dew point of a saturated gas phase equals the __________ temperature.

Room
Wet bulb
Gas
None of these

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