Whenever I am to prove the fact that the $y$ intercept to the $G$ vs $X$ curve is basically my chemical potential, there are two equations that need to be assumed. One is $$G=\mu _{A}X_{A}+\mu _{B}X_{B},$$ and the other is the total differential expression of $\mathrm{d}G'$. However they are treated as two independent equations. However, are they not related? What is the intuition to the geometrical interpretation of the chemical potential?

  • $\begingroup$ What have you done so far? Are you familiar with the Gibbs Duhem equation? $\endgroup$ Jul 13, 2019 at 12:35
  • $\begingroup$ I have done that but I really do not know the intuition behind the equation. $\endgroup$
    – gateprep
    Jul 13, 2019 at 13:03
  • $\begingroup$ See Smith and van Ness, Introduction to Chemical Engineering Thermodynamics, Chapter 11 $\endgroup$ Jul 13, 2019 at 14:11
  • $\begingroup$ Thanks @ChetMiller it was just what I was looking for. $\endgroup$
    – gateprep
    Jul 13, 2019 at 15:11


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.