THERMODYNAMIC PERTURBATION-THEORY OF CHARGED HARD-SPHERES IN A UNIFORM NEUTRALIZING BACKGROUND

Thermodynamic quantities such as the excess Helmholtz free energy, exc ess internal energy, and compressibility factor of charged hard sphere s are calculated from the hard-sphere perturbation theory and the opti mized hard-sphere model which we have recently developed. The optimize d hard-sphere model gives thermodynamic properties in excellent agreem ent with Monte Carlo results. We compute the radial distribution funct ion and structure factor at several values of the Coulomb coupling con stant and the hard-sphere packing fraction. Our results predict the ra dial distribution function and the structure factor in reasonable agre ement with Monte Carlo results.