Pressure dissociation and the hydrogen molecular ion

Abstract

The partition functions for the hydrogen molecular ion, with an estimate of pressure dependence included, have been calculated, using an extension of the Heftier-London theory. The partition functions have been used to evaluate the equilibrium constants and internal energies for H₂⁺ as a function of temperature and pressure. Tables of partition functions, equilibrium constants and internal energies have been given for T=3000 to 25 000°K and for pressures as high as 2 × 10¹⁰ dyne/cm².