Abstract
The vibrational relaxation of oxygen in the presence of oxygen atoms generated by the thermal decomposition of ozone has been studied in shock waves over the temperature range 1600°–3300°K. Relaxation of the oxygen was followed densitometrically with the laser schlieren technique. The presence of small quantities of oxygen atoms has a pronounced effect on oxygen relaxation. Detailed analysis of the data results in the simple expression PτO2−O=(4.35±0.19)×10−8−(7.75±0.81)×10−12 T atm·sec for the relaxation time of oxygen dilute in an atmosphere of oxygen atom. It is concluded that this system provides an unambiguous example of a strong chemical effect.
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