Thermodynamic and Topological Investigations of Binary Mixtures of Non-Electrolytes: Activity Coefficients, Molar Excess Gibbs Free Energy of Mixing and Molar Excess Enthalpies

Thermodynamic Properties of Binary Mixtures of Tetrahydropyran with Anilines at 308.15 K

“…At the same time, thermal energy would influence the magnitude of unlike interaction energy so that γ 1 varies as some function of (χ 12 ** / RT ) S 2 , where χ 12 ** is the interaction energy. On the basis of these considerations, activity coefficients of component 1 and 2, in (1 + 2) binary mixtures, can be expressed by eqs and ln γ 1 = χ 12 * * x 1 v 2 R T ∑ i = 1 2 x i v i ln γ 2 = true( χ 12 * * v 2 R T v 1 true) true[ ln ∑ i = 1 2 x i v i x 2 v 2 − x 1 v 1 ∑ <...…”

“…At the same time, thermal energy would influence the magnitude of unlike interaction energy so that γ 1 varies as some function of (χ 12 **/RT)S 2 , where χ 12 ** is the interaction energy. On the basis of these considerations, activity coefficients of component 1 and 2, in (1 + 2) binary mixtures, can be expressed 26 (1 + 2) mixtures, molar volumes of the components 1 and 2 are not equal. In such cases, the activity coefficient, γ 1 , can be predicted by taking into consideration (i) the molar interactions in (1 + 2) binary mixtures and (ii) work done in accommodating the second component into the matrix of the first component.…”