Recombination of Oxygen Atoms at High Temperatures as Measured by Shock‐Tube Densitometry

摘要: The rate of recombination oxygen atoms has been measured by shock‐tube x‐ray densitometry in the range 1500°—2800°K. Mixtures ozone, oxygen, and argon or krypton were driven with helium a shock tube density records obtained for each experiment.Within 2 μsec after arrival wave ozone had decomposed leaving an excess atoms. oxygen‐atom concentration is subsequently determined gas, from gradual decrease density.The reaction O+O+O2→ lim k42O2 dominant this system, its rate, defined equation d[O2]/dt=k4[O]2[O2] found to be k4=(6.81±0.54)×108(2200/T)(1.22± 0.53) liter2/mole2·sec. This result close agreement that Rink dissociation experiments.