Ez. Hamad, CONTACT PAIR CORRELATION-FUNCTIONS AND EQUATION OF STATE FOR NONADDITIVE HARD-SPHERE MIXTURES, The Journal of chemical physics, 105(8), 1996, pp. 3222-3228
We present some exact results for mixtures of nonadditive hard spheres
and use them to derive two models for the contact values of the pair
correlation functions and the equation of state. The new models are ge
neral in that they are not limited to binary mixtures, equal size comp
onents, or a certain range of the nonadditivity parameter. Comparison
with the available computer simulation data for equal size components
show that the new models predict satisfactory the equation of state da
ta and the contact values. The prediction of the critical point of flu
id-fluid phase separation is satisfactory at small and large values of
the nonadditivity parameter, and less so at intermediate values. (C)
1996 American Institute of Physics.