Measurements temperature within flame zone

The significance of quantitative determinations of kf in such studies is limited by uncertainties concerning the relative contributions of various collision partners, M -. No systematic effort to separate these effects has been reported. In a recent study of profiles in one hydrogen-rich flame, the mean value of kf at 600 K for the particular gas composition was estimated to be 3 x 10 cm mole sec . Similarly, concentration and temperature measurements within the primary zone of a hydrogen-lean flame yielded (1000-1350 K) = 1 x W cm mole" sec, with assumed to be HgO. Both values are in reasonable agreement with those in Table 2.2, if allowance is made for the estimated influence of composition. 

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