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

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Mass Transfer
Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is

5.6 x 10⁻⁴
8.5 x 10⁻⁴
8.5 x 10⁻³
5.6 x 10⁻³

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