ABSTRACT
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The systems of fluids of practical interest to chemists and chemical engineers are as a rule complex, departing significantly from ideal-solution behavior. The systems at interfaces are, in addition, inhomogeneous exhibiting density gradients and, when multicomponent, they also exhibit composition gradients or peculiar composition profiles across the interfaces. Thus, development of thermodynamic models for complex fluids applicable over a wide range of conditions remains an active and fascinating research area. Recent advances in statistical thermodynamics and better understanding of intra-and intermolecular interactions thanks to accurate experimental measurements andmolecular simulations using realistic force fields have contributed significantly to this end.
