The dependence of the rate constant of chemical reaction on density derived from the generalized Enskog equation for dense gases

For reaction A+A=B+C it is shown (after application of formalism similar to that used by Prigogine and Xhrouet for analysis of generalized Boltzmann equation) that the ratio k/k0 (where k and k0 are the values of rate constant in dense and dilute gas, respectively) is equal to the radial distribution function χ taken at the point of contact of reacting spheres. Comparison of theoretical results derived in this paper and experimental results due to Kistiakowsky on decomposition of hydrogen iodide is given and good agreement between those results is obtained.