Molecular diffusion in liquids

1
Molecular diffusion in liquids
Slower than gaseous diffusion Diffusivities
significantly lower than gaseous
diffusion Species concentrations are higher than
in gaseous diffusions
Equimolar counter diffusion
2
Diffusion of species A in stagnant B
For diffusion in dilute solutions
3
Diffusion coefficients in liquids
Look up values of diffusion coefficients of
various solutes in different liquids in Table
6.3-1 of the text
4
Prediction of diffusion coefficient of solutes in
liquid medium
Stokes-Einstein equation
Equation by Wilke-Chang