For a Large Excess of Oxygen, O₂, the Rate of Production

Multiple Choice

For a large excess of oxygen, O₂, the rate of production of nitrogen dioxide, NO₂, by the gas-phase oxidation of nitric oxide, NO
2 NO(g) + O₂  2 NO₂(g) is found to be independent of the partial pressure of oxygen present. Under these conditions, the rate of formation of nitrogen dioxide was measured to be 8.34  10^-13 s^-1 for a concentration of nitric oxide of 5.38  10^-6 mol dm^-3. Use the description of the mechanism of the reaction given in section 11.5 to determine the rate constant for the dimerization of nitric oxide
2 NO(g)  N₂O₂(g) .

A) 14.4  10^-3 dm⁶ mol^-2 s^-1
B) 1.55  10^-7 dm⁶ mol^-2 s^-1
C) 28.8  10^-3 dm⁶ mol^-2 s^-1
D) 7.8  10^-8 dm⁶ mol^-2 s^-1