In a study of the gas phase decomposition of nitrogen dioxide at 383C NO2(g)NO(g)+1/2O2(g) the following data were obtained: Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.445M is s and when the starting concentration is 0.223M is s. (2) The average (1/[NO2])/t from t=0s to t=5.17s is M1s1 The average (1/[NO2])/t from t=5.17s to t=15.4s is M1s1. (3) Based on these data, the rate constant for this order reaction is M1s1