JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by___________________?

Related Mcqs:

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 × 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 _________________________?

A. 5.6 × 10-4 B. 8.5 × 10-4 C. 5.6 × 10-3 D. 8.5 × 10-3...

Mass transfer co-efficient is defined as__________________?

A. Flux = Co-efficient/concentration difference B. Co-efficient = Flux/concentration difference C. Flux=concentration difference/coefficient D. None of these...

For gas absorption, low viscosity solvents are preferred, because of their ____________________?

A. Better flow characteristics B. Low pumping pressure drop C. Rapid absorption rates D. All A., B. and C....

Water entrained by circulating air in cooling towers is termed as________________?

A. Drift B. Blow down C. Vapor load D. None of these...

For a ternary mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a ____________ of the equilateral triangular co-ordinates?

A. Binary mixture is represented by the apex B. Binary mixture is represented by any point inside C. Ternary mixture is represented by the sides D. Pure component is represented by the apex...