For the following two-step mechanism:
Step 1: NO (g) + NO (g) --K1--> N2O2 (g) (fast, equilibrium)
<-------
Step 2: N2O2 (g) + Br2 (g) ------> 2 NOBr (g) (slow)
(a) Write the equation for the overall reaction. (b) Write the raw law for the overall reaction.
For the following two-step mechanism: Step 1: NO (g) + NO (g) --K1--> N2O2 (g) (fast,...
What is the rate law derived from the following mechanism? Step 1: 2 NO(g) N2O2(g) (fast) Step 2: N2O2(g) + O2(g) —>2 NO2 (g) (slow) Rate = k[NO]2 Rate = k[NO]2[02] Rate = K[N2021 Rate = K[N202][02]
Question 20 2.5 pts The gas-phase reaction of nitric oxide (NO) with bromine (Br2), occurs by the following two- step mechanism: NO(g) + NO(g) = N2O2(g) (fast, equilibrium) N202 + Br2 → 2 NOBr(g) (slow) What is the observed rate law for the overall reaction? A. Rate = k[NO] [N202][Br2] B. Rate = k[N202][Br] C. Rate = k[NO]”[Br2] D. Rate = k[NO] E. Rate = k[NO]”[N202][Br2]
#13 Interpreting Mechanisms 1. Consider the following mechanism: Step 1 Br2 2Br fast Step 2 Br + H2 H2Br fast Step 3 H2Br + Br 2HBr slow a. What is the overall equation? b. Identify the intermediate(s) if any. c. What is the molecularity and the rate law for each step including any reversible steps? d. What is the predicted rate law expression for this reaction. Be sure to only list reactants from the overall equation and...
A proposed mechanism for a reaction is as follows: NO2(g) + NO2(g) + N204(8) Fast/Equilibrium Step N2048) -> NO(g) + NO3(g) Slow NO3(g) NO) + O2(g) Fast The target rate law is rate = k (NO2)2 The target reaction is 2NO2(e) 2NON + O2) A. Write the rate law expected for this mechanism: B. What is the rate-determining step? C. What is the overall balanced equation for this mechanism? D. If there is/are a reactive intermediate(s), which is/are they? E....
2. Consider this two step mechanism for a reaction… Step 1 NO2 + O3 --> NO3 + O2 slow; rate determining step Step 2 NO3 + NO2 --> N2O5 fast a. What is the overall reaction? b. Identify the intermediates in the mechanism. c. Write the rate law expression for each step of the mechanism including any reversible reactions. c. What is the predicted rate law expression? Be sure to only list reactants from the overall equation and not intermediates...
QUESTION 9 A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) → N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) → N2O(g) + H2O(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) + H2O(g) (fast) What is the rate law for the overall reaction? k[N2O][H2] k[NO]2[H2] k[NO]2[H2]2 k[NO]1/2[H2] k[NO]2
QUESTION 19 A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) + N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) → N2O(g) + H2O(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) + H2O(g) (fast) What is the rate law for the overall reaction? Ok[NO]1/2[H2] k[NO]2[H2] k[NO] [H2)2 k[N20][H2] k[NO]2
A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) → N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) → N2O(g) + H2O(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) + H2O(g) (fast) What is the rate law for the overall reaction? O k[no]/2[Hz] O k[N20][H2] O k[NO]2 O k[NO]2[Hz] O k[NO]2[H212
Step 1: NO(g) + O2(g) ---> NO2(g) + O(g) rate= k1 Step 2: NO(g) + ) --> NO2 (g) rate = k2 suppose that k1<<k2, That is the first step is much slower than the second. Write the balanced chem equation for the overall chemical rxn Write the experimentally observable rate law for the overall reaction. (no reaction concentrations) rate=k() Express the rate constant k for the overall reaction in terms of k1, k2 and (if necessary) the rate constant...
Quest. 3 (10 pts). Examine the following mechanism Step 1 2N2O2(g) Step 2 2N2O(g) + 2H2 (g) → → 2N2O(g) + O2(g) 2N2 (g) + 2H2O(g) (kl; slow) (k2; fast) a) (2 pts) Write the overall equation for the reaction. b) (2 pts) Identify the intermediate(s) and/or catalyst(s) if any. c) (2 pts) Write the rate law for the overall reaction. d) (1 pts) State the order of the reaction e) (2 pts) Write the integrated rate equation f) (1...