Collection of Czechoslovak Chemical Communications - digital archive 

Abstract

The conditions of the existence of extreme on the concentration dependences of absolute temperature (x are mole fractions) T = T^α(x_k^α) and T = T^β(x_k^β) denoting equilibrium between two binary regular solutions are generally developed under two assumptions: 1) Free enthalpy change of pure components k = i, j at transition from phase α to β is a linear function of temperature. 2) Concentration dependence of excess free enthalpy (identical with enthalpy) of solutions α and β, respectively, is described in regular model by one concentration and temperature independent parameter for each individual phase.