Margules equation
The Margules equation (after Max Margules ) is a model of technical chemistry that correlates the activity coefficients γ 1 and γ 2 with the mole fractions x 1 and x 2 , which describe the composition of a binary chemical mixture :
![\ ln \ gamma _ {1} = x_ {2} ^ {2} [A _ {{12}} + 2 (A _ {{21}} - A _ {{12}}) x_ {1}]](https://wikimedia.org/api/rest_v1/media/math/render/svg/675215c9176fcf864e3f3460c3b8646fbf9b1ceb)
![\ ln \ gamma _ {2} = x_ {1} ^ {2} [A _ {{21}} + 2 (A _ {{12}} - A _ {{21}}) x_ {2}]](https://wikimedia.org/api/rest_v1/media/math/render/svg/c3f12c28cb2f4f419deacab7acc505f4cc56da52)
A 12 and A 21 are parameters that can be adapted to the activity coefficient .
See also
literature
- ↑ On the composition of the saturated vapors of mixtures . In: Meeting consultations of the Academy of Sciences Vienna, mathematical and natural science class . No. 104 , 1895, pp. 1243-1278 .