Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Increases
Decreases exponentially
Decreases
Remains unchanged

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Mass Transfer
A coalescer in a mixer-settler liquid-liquid extraction coloumn

All of these
Helps in increasing the settling rate of the bubbles
Comprises of thin bed of substances of extended surface having high porosity
Helps in increasing the bubble size entering the settler

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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 composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10
The mixture exhibits an azeotrope at 101.3 kPa
The mixture contain optical isomers
The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 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 10⁻³
5.6 x 10⁻⁴
8.5 x 10⁻⁴
8.5 x 10⁻³

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