Fugacity Determinations of the Products of Detonation

Abstract

By employing the equation of state derived from the hydrodynamic theory and observed detonation velocities, the thermodynamic equilibrium constant K_p(T) is derived in terms of the concentrations of the various gases comprising the products of detonation and the covolume α(v), which may be evaluated for any known or assumed density of the products of detonation. A reiteration method is developed for solving simultaneously as many equilibria as is necessary to define completely the composition of the products of detonation. The application of the theory is illustrated by calculations for TNT which are compared with experimental data as well as results obtained from the approximate partial pressure method. Calculations are presented for several additional explosives.