Pair Potential in Liquids from the Exact Born‐Green Equation. I. Model Testing

Pair potentials which are derived from the experimental pair correlation functions by either the Born‐Green, the Percus‐Yevick or the hypernetted chain equation have built‐in inaccuracies because of the approximate nature of these equations. In this paper we show that the results can be improved upon by using the exact Born‐Green equation properly. This method is checked by several Monte Carlo models and seems to work well.