Introduction

Define ‘mass transfer’.

What is the driving force for mass transfer?

Give examples for mass transfer operations.

Compare between ‘absorption’ and ‘adsorption’.

Write the equation for mass transfer flux in terms of diffusivity.

Write the equation for mass transfer flux in terms of mass transfer coefficient.

Compare between ‘diffusivity model’ and ‘mass transfer coefficient model’ of predicting mass transfer flux.

Compare the rate of diffusion of a species in gas, liquid and solid phases.