A simple and accurate expression for radial distribution function (RDF) of the Lennard-Jones fluid is presented. The expression explicitly states the RDF as a continuous function of reduced interparticle distance, temp., and d. It satisfies the limiting conditions of zero d. and infinite distance imposed by statistical thermodn. The distance dependence of this expression is expressed by an equation which contains 11 adjustable parameters. These parameters are fitted to 353 RDF data, obtained by mol. dynamics calcns., and then expressed as functions of reduced distance, temp. and d. This expression, having a total of 65 consts., reproduces the RDF data with an av. root-mean-squared deviation of 0.0152 for the range of state variables of 0.5  T*  5.1 and 0.35  *  1.1 (T* = kT/ and * = 3 are reduced temp. and d., resp.). The expression predicts the pressure and the internal energy of the Lennard-Jones fluid with an uncertainty that is comparable to that obtained directly from the mol. dynamics simulations.

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