A Mean Field Model for the Phase Diagram of Benzene
S. Sen and H. Yurtseven
T-P phase diagram of benzene is studied here by the mean field theory. The phase line equations which we derive from the mean field model are fitted to the experimentally measured T-P phase diagram of benzene. By coinciding the phase lines calculated here with the observed phase boundaries among the phases of benzene, a T-P phase diagram of this molecular organic compound is reconstructed.
It is shown that the first order transitions and a second order transition (III-III’) as observed experimentally, can be adequately described by our mean field model introduced in this study
Keywords: Mean field model, Phase diagram, Order parameters, Specific heat, Isothermal compressibility, Thermal expansivity Benzene.