The reaction O2(g) + 2 NO(g) 2 NO2(g) was studied at a certain temperature with the following results:

Experiment [O2(g)] (M) [NO(g)] (M) Rate (M/s)

1. 0.0149 0.0149 0.0239

2 0.0149 0.0298 0.0954

3 0.0298 0.0149 0.0477

4. 0.0298 0.0298. 0.191

(a) What is the value of the rate constant?

(b) What is the reaction rate when the concentration of O2(g) is 0.0185 M and that of NO(g) is 0.0322 M if the temperature is the same as that used to obtain the data shown above? ___M/s