Determine the NO2 exponent in the rate equation.

The following reaction was observed: 2NO2 => 2NO + O2 The initial concentration of NO2 of 0.1 M gave an initial rate of reaction of of oxygen formation of 3 x 10^-2 M/second If the concentration of NO2 was doubled to 0.2 M an initial rate of reaction of oxygen formation was seen to be +6 x 10^-2 …