Questions 7-8 use the following information. Consider the reaction and its rate law given below: NO2(g) + CO(g) NO(g) + CO2(g) Rate = k[NO_12 One proposed mechanism for the reaction is (1) 2 NO2(g) -> N2(g) +20,(g) (2) 2 CO(g) + O2(g) 2 CO2(g) (3) N2(g) + O2(g) 2 NO(g) (slow) (fast) (fast) 7. Is the proposed mechanism consistent with the rate law? (A) The proposed mechanism is inconsistent, because it results in 2 NO2(g) + 2 CO(g) 2 NO(g) + 2 CO2(g) (B) The proposed mechanism is consistent, because the rate determining step requires only 2 NO, molecules. (C) The proposed mechanism is consistent, but the rate law is incorrect, because it does not contain any O (D) The proposed mechanism is inconsistent, because the first step does not contain any Co. 8. Consider the graph possibilities shown below for the gaseous reactant, NO. (A) (C) 1/M , M Time Time (B) (D) In M . Time Time Which of the above graphs correctly indicates the reactant order of the reactant, NO? (A) A (B) B (C) C (D) D