Many theories have been suggested to explain thermodynamic properites of polymeric liquids. Most of the theories are based on the concepts of cell, hole, free volume or lattice. In this work, the author applied several such polymer theories to hydroca...
Many theories have been suggested to explain thermodynamic properites of polymeric liquids. Most of the theories are based on the concepts of cell, hole, free volume or lattice. In this work, the author applied several such polymer theories to hydrocarbon mixtures, n-C_6H_14 + n-C_16H_34 and n-C_8H_18 + n-C_16H_34 systems rather than polymers to calculate their volume and enthalpy changes of mixing and to compare them with experimental data. The results showed that Van der Waals potential is more realistic than Lennard-Jone 6-12 potential in hydrocarbons differently from polymers.