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Mass Transfer

Mass Transfer
Which of the following is not a continuous drier?

Drum drier
Spray drier
Tunnel drier
Tray drier

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

Nature of the constituents
None of these
Concentration
Temperature and pressure

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Mass Transfer
If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.

5
2.5 to 3
1.2 to 1.5
3 to 4

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Mass Transfer
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

None of the listed here
Strength
Thermal conductivity
Electrical resistance

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

?
None of these
1

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Mass Transfer
The-relative volatility for separation of a non-ideal binary mixture by distillation should be

> 1
< 1
1

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