Surface tension - A theoretical study of multicomponent solutions

Surface tension of four quaternary (pentane + hexane + cyclohexane + benzene, pentane + hexane + benzene + toluene and pentane + cyclohexane + heptane + toluene, n-decane + n-hexane + cyclohexane + benzene) and six ternary (toluene + cyclohexane + carbon tetrachloride, benzene + cyclohexane + toluene, pentane + n-hexane + benzene, n-hexane + cyclohexane + benzene, cyclohexane + n-heptane + toluene and benzene + n-hexane + carbon tetrachloride) mixtures containing alkanes at 298.1 5 K have been calculated by applying different approaches including :Altenberg (AL), Mc-Gowan (McG), Sanchez (SZ), Goldsack and Sarvas (GS), Flory Theory (FT) and Group Contribution method (GC). The results have been presented in terms of their average percentage deviation (APD) values and comparative studies have been done. An attempt has also been made to explain the nature of the molecular interactions and forces involved in these mixtures.