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Mass Transfer

Mass Transfer
Degree of freedom for leaching and solvent extraction process is

3
1
2

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Mass Transfer
Danckwerts developed the __________ theory.

None of these
Film
Surface renewal
Penetration

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Mass Transfer
Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure.Nitrobenzene will distill off __________ °C.

Between 100 and 210
At < 100
None of the listed here
At > 210.6

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Mass Transfer
Which of the following is an undesirable property in a tower packing?

Large weight of liquid retained
Low weight per unit volume
Large free cross-section
Large surface per unit volume

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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.

Thermal conductivity
Strength
None of the listed here
Electrical resistance

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Mass Transfer
For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.

Remains same
Increases
Either A or B; depends on the gas
Decreases

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