The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?
(A) Van Laar
(B) Margules
(C) Gibbs-Duhem
(D) Gibbs-Duhem-Margules

