Excess gibbs energies for the benzene + n-hexadecane system at 298.15 and 323.15 K

The vapor pressure of the system benzene +n-hexadecane is measured by means of a static apparatus. Excess Gibbs energies are calculated using a modified Barker's method, and fitted to an equation proposed by Marsh. The regression analysis is based on the principle of maximum likelihood. The selection of the best set of estimates of the parameters is also discussed. The results obtained in this work are compared with those reported by other authors for the same system. Due to the lack of heat capacity data for this system, an approximation to calculate temperature dependence is studied.