The planar dumbbell fluid

Abstract

The thermodynamic and structural properties of the planar dumbbell fluid are examined. The Reference Interaction Site Model (RISM) theory in two dimensions is used to calculate the site–site radial distribution functions for a range of elongations and densities. The results are compared with Monte Carlo simulations. This theory also provides a route to the thermodynamic properties. Scaled particle theory, the y expansion of Barboy and Gelbart, and a median potential are also applied to the problem of predicting the thermodynamic properties. The relative merits of the theories are discussed.