Abstract

he effective diameter hard sphere theory is employed to estimate the transport properties (TP’s) of classical
and semiclassical fluids. The TP’s of the fluids are expressed in terms of a classical hard sphere (HS) fluid of
properly chosen hard sphere diameter. The explicit expressions for the shear viscosity and thermal
conductivity for the HS fluid are given. The theory is applied to estimate the TP’s of fluids Ar, Ne and H2. The
agreement is found to be fairly good at low density.