Critical behaviour of two-dimensional Lennard-Jones fluid mixtures: a meanfield study

The critical behaviour of two-dimensional Lennard-Jones fluid binary mixtur es is investigated by using thermodynamic perturbation theory. Preliminary results show that the critical curves for the two-dimensional mixtures exhi bit the same behaviour as that found in the corresponding three-dimensional fluid binary mixtures, with similar shortcomings as those found in mean fi eld theories.