| Abstract: | The reaction between ozone and carbon monoxide was reinvestigated in the range of 80–160°C. The previously reported rate law ?d[O3]/dt = ka[O3][CO] + kb[O3]2 was confirmed and simulated using a mechanism based on an impurity-initiated chain reaction. When the CO was sufficiently purified, kb tended to zero and ka reduced to the value expected for the thermal decomposition of O3. Subsequent reactions of O atoms with CO produced chemiluminescence which was used to measure k3 for  as 10?14.0±0.3 exp[?(1630 ± 325)/T] cm3 molecule?1 s?1. The implications of this are discussed. |
