Fundamental thermodynamic surfaces for alkanol-alkane binary mixtures by the NRTL model

Thermodynamic surfaces of the excess Gibbs energy, excess enthalpy and excess entropy, along with partial molar quantities of these quantities were calculated, using experimental data published in the literature, over the whole composition range and in various temperature regions for the following binary mixtures: ethanol + cyclohexane, 275.15–340.15 K; 2-propanol + n-heptane, 300.15–335.15 K; n-butanol + n-heptane, 285.15–365.15 K; n-pentanol + n-hexane, 295.15–320.15 K. Temperature-dependent interaction energy parameters of the NRTL model were employed in the calculations. The surfaces of the fundamental thermodynamic properties and the partial molar quantities facilitate better evaluation of the thermodynamic behavior of the alkanol-alkane binary mixtures and the association of alkanol molecules with the change in composition and temperature.