1. What kind of mass transfer this chapter is concerned with? How is it different from mass flow in fluid mechanics? 2. Explain Fick’s law of diffusion. What is mass diffusivity? What is its...

1. What kind of mass transfer this chapter is concerned with? How is it different from mass flow in fluid mechanics?

2. Explain Fick’s law of diffusion. What is mass diffusivity? What is its dimension?

3. Give a comparison of Newton’s law of viscosity, Fourier’s law of heat conduction and Fick’s law of diffusion. How can you generalise them in terms of force and flux?