Molecular diffusivity of a liquid

Related MCQs

• The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________
• The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of
• If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is
• In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the
• The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which „D’ is the diffusivity of solute, is
• Liquid diffusivity is of the order of __________ cm2 /second.
• 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:
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• Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as