Reaction between NO2 and electrons

The rate of attachment of gaseous electrons to NO2 has been measured by Mahan and Walker . In these experiments thermal electrons were aUowed to react with NO2 in the presence of a number of inert gases. The rate law found in all cases was 

If the life time before electron ejection by (N02 ) is longer than the time between collisions, i.e. -c (k62+ 63)[M], then the above expression reduces to 

The values of the overall coefficients, k6o 62/( 62+ 63) found are shown in Table 4. 

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