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Mass Transfer Processes: Modeling, Computations, and Design, First Edition by P. A. Ramachandran

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Chapter 6. Diffusion-Dominated Processes and the Film Model

Learning Objectives

After completing this chapter, you will be able to:

  • Solve prototype problems involving steady state diffusion.

  • Describe how diffusion can cause an associated flow (diffusion-induced convection).

  • Account for the effect of convection in diffusion-dominated systems (i.e., stagnant systems).

  • Describe the film theory concept of mass transfer and its usefulness in many applications.

  • Evaluate how the rate of chemical reaction at a surface is affected by the rate of mass transfer.

  • Explain the two-film theory for gas–liquid (or liquid–liquid) mass transfer and calculate the rate of interfacial mass transfer given the bulk composition of the two phases.

This chapter examines ...

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