Answer to Question #106018 in Physical Chemistry for Bharti

Question

Prove the margules equations

Answer 1

Gibbs Duhem equation:

Chemical potential of the componet in the solution:

Let's put this equation in the previous one:

Those equation are the G-D-Margules equations. Or in other form:

More detailed derivation you'll find here:

https://en.wikipedia.org/wiki/Duhem%E2%80%93Margules_equation