Consider the following 2 - step reaction A + B2 + C → AB + BC (slow) A + BC → AB + C (fast) which of the following statements is/are correct?
1. The rate law is third order.
2. BC is a reaction intermediate.
3. C is a catalyst.
A. none
B. 2 & 3 only
C. 1 & 2 only
D. 1 & 3 only
E. all
8. (2 points) Consider the mechanism below Step 1 (slow) A2 BC AB+AC AB BC B2AC Step 2 (fast) B2+ 2 AC overall A22 BC What is the rate law of the reaction? a. b. What compound is considered an intermediate?
Consider the overall reaction and proposed mechanism. step 1: A + BC --> AB + C step 2: AB + D --> AD + B step 3: B + C --> BC overall reaction: A + D --> AD What step is rate determining (slow) if the rate law of overall reaction is Rate = k[A][BC]
Consider the mechanism. Step 1: AB+C Step 2: C+ DE Overall: A+D- B+E slow fast Determine the rate law for the overall reaction, where the overall rate constant is represented ask. rate =
Consider the overall reaction and proposed mechanism. What step is rate determining (slow) if the rate law of overall reaction is Rate = k[A][BC] step 1: A + BC --> AB + C step 2: AB + D --> AD + B step 3: B + C --> BC overall reaction: A + D --> AD
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...
Use the generic elementary steps shown to below to answer the following questions. A + BC + D Elementary Step 1 (slow) A + DC + E Elementary Step 2 (fast) a. Based on the provided elementary steps, but is the net reaction? Select] [Select] 2A+B+D -> 2C+D+E 2A+B --> 2C+E termediates in this reaction? [Select] 2A +B+D -> 2C+E 2A + B --> 2C+D+E C. If step 115 the slow step, what should be the rate law for this...
Question 4 of 10 For a reaction that proceeds by the following two-step mechanism A2 =2A (fast) A+B-C (slow) Which of the following statements is/are correct? 1) The reaction is first order in the concentration of Az. 2) B is a reaction intermediate. 3) The rate-determining step is bimolecular. 4) The units of the specific rate constant are mol1/2_-1/2-1 O A. 1 & 3 only B. 2 only C. 3 only OD. 1 & 4 only O E.2 & 3...
#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...
For a reaction that proceeds by the following two-step mechanism A2 ⇄ 2A (fast) A + B → C (slow) Which of the following statements is/are correct? 1) The reaction is first order in the concentration of A2. 2) B is a reaction intermediate. 3) The rate-determining step is bimolecular. 4) The units of the specific rate constant are mol1/2L-1/2s-1
Suppose a reaction occurs with the following mechanism: Step 1: 2AD Step 2: D+E- (fast) B+C (slow) 1. What is the overall reaction? [Select] 2. What is the intermediate in the mechanism? (Select] 3. What is the molecularity of step 1? (Select 4. Which step is the rate determining step? [Select) 5. What is the rate law predicted by this mechanism? [Select) Question 22 15 pts Consider the following reaction at equilibrium: CO(g) + 2H2(g) CH2OH(g) AH=-18 kJ How will...