Mass Transfer
Low viscosity absorbent is preferred for reasons of

Rapid absorption rates and good heat transfer characteristics
All of these
Improved flooding characteristics
Low pressure drop on pumping

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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 10⁻³
8.5 x 10⁻⁴

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Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Chemical combination or molecular association between unlike molecules takes place in the formation of solution
Size of component molecules are not equal
Attractive forces between like and unlike molecules in the solution are approximately equal
Component molecules are nonpolar

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