A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture?

Mass Transfer
A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture?

The mixture exhibits an azeotrope at 101.3 kPa

The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10

The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10

The mixture contain optical isomers

The mixture exhibits an azeotrope at 101.3 kPa

The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10

The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10

The mixture contain optical isomers

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Mass Transfer
In a counter-current extractor, as the axial mixing increases, the extraction efficiency

Remains unchanged

Increases

Depends on the pressure of the system

Decreases

Remains unchanged

Increases

Depends on the pressure of the system

Decreases

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Mass Transfer
During constant rate period, the rate of drying decreases with the

Neither A nor B

Decrease in air temperature

Increase in air humidity

Both A & B

Neither A nor B

Decrease in air temperature

Increase in air humidity

Both A & B

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

Evaporation

Drift

Blowdown and leakage

All of these

Evaporation

Drift

Blowdown and leakage

All of these

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Mass Transfer
H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is

2

0.56

1.56

1

2

0.56

1.56

1

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Mass Transfer
Can the efficiency of a plate in the distillation tower be greater than 100%?

Yes

Yes ; if the reflux ratio is maximum

Normally not; but is possible if infinite number of plates are put

Never

Yes

Yes ; if the reflux ratio is maximum

Normally not; but is possible if infinite number of plates are put

Never

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Mass Transfer

Mass Transfer A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture?

Mass Transfer In a counter-current extractor, as the axial mixing increases, the extraction efficiency

Mass Transfer During constant rate period, the rate of drying decreases with the

Mass Transfer Make up water is required in a cooling tower to replace the water lost by

Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%?

Mass Transfer
A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture?

Mass Transfer
In a counter-current extractor, as the axial mixing increases, the extraction efficiency

Mass Transfer
During constant rate period, the rate of drying decreases with the

Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

Mass Transfer
Can the efficiency of a plate in the distillation tower be greater than 100%?