The Rate of Reaction of Deuterium with Hydrogen Chloride

The reaction D₂+HCl=HD+DCl has been investigated at temperatures from 765°K to 843°K. The reaction is almost entirely homogeneous, and, up to temperatures of the order of 830°K, bimolecular. The fraction which proceeds heterogeneously is determined in a vessel packed with tubes. The constant of the homogeneous bimolecular reaction can be represented by the following equation: $$K_o{\text{=6.27×10}}^{13}{\mathrm{\times T}}^{\frac{1}{2}}{\mathrm{\times e}}^{\text{−26.200/T}}\hspace{0.17em}{\mathrm{mole}}^{\text{−1}}\hspace{0.17em}{\mathrm{cm}}^3\hspace{0.17em}\sec {.}^{\text{−1}}.$$ At the maximum measured temperature of 843°K deviations were noticed which may have been due to atomic reaction.