The unavoidable necessity of considering temperature dependence of the liquid Gibbs energy of mixing for certain VLE data correlations

In addition, a strategy has been suggested that allows knowing in advance when the parameters should be considered temperature dependent. The attractive feature of this proposal is that the answer to the question of whether a T-dependence is necessary is obtained just from the experimental VLE data, without using any particular model for the Gibbs energy of mixing for the liquid phase. New results of VLE data correlation showing markedly improved fittings are presented for some of the systems poorly correlated in literature, showing the potential of the procedure.