Elementary Derivation of the Multicomponent Diffusion Equation

  title={Elementary Derivation of the Multicomponent Diffusion Equation},
  author={F. A. WILLIAMst}
  • F. A. WILLIAMst
It is demonstrated that the multicomponent diffusion equation can be derived from elementary kinetic-theory considerations without employing the results of the mathematical theory of nonuniform gases. By using the approach described by Furry, elementary expressions for the binary diffusion coefficients are also obtained. The advantage of the concept of the equivalence of partial pressure gradients and momentum gradients is thereby emphasized. 

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