When the rate for the reaction 2 NO. 0₂ 2 NO, was studied, the role was found to double when the O₂ concentration was doubled while The NO concentration was unchanged. It was also found that the rate quadruples when the NO concentration is doubled while the O, concentration is unchanged. a. What is the rate law expression for this reaction? Place this answer clearly labeled within the answer box in the quiz Two mechanisms were proposed for this reaction as shown below. PROPOSAL I Step 1 Step 21 NO O NO. NO, PROPOSAL II Step 1 Step 2 Step 3 NO 0₂ N₂0₂ NO N₂O₂ NO; (fast) NO, NO, (elew, RDS) N₂O₂ N₂O₁ NO, (slow, RDS) (test) NO, (fast) b. Write a predicted rate low for each proposed mechanism. In your predicted rate law, make sure no intermediates are present in the overall expression Show your work or no credit will be awarded. Show your answer for this question on the scratch paper clearly labeled o. Which proposed medhonism I or II ogrees with the rate kw expression that you determined above? You must also explain your reasoning or no credit will be given. Ploce your answer on the scratch paper clearly labeled
When the rate for the reaction 2 NO. 0₂ 2 NO, was studied, the role was found to double when the O₂ concentration was doubled while The NO concentration was unchanged. It was also found that the rate quadruples when the NO concentration is doubled while the O, concentration is unchanged. a. What is the rate law expression for this reaction? Place this answer clearly labeled within the answer box in the quiz Two mechanisms were proposed for this reaction as shown below. PROPOSAL I Step 1 Step 21 NO O NO. NO, PROPOSAL II Step 1 Step 2 Step 3 NO 0₂ N₂0₂ NO N₂O₂ NO; (fast) NO, NO, (elew, RDS) N₂O₂ N₂O₁ NO, (slow, RDS) (test) NO, (fast) b. Write a predicted rate low for each proposed mechanism. In your predicted rate law, make sure no intermediates are present in the overall expression Show your work or no credit will be awarded. Show your answer for this question on the scratch paper clearly labeled o. Which proposed medhonism I or II ogrees with the rate kw expression that you determined above? You must also explain your reasoning or no credit will be given. Ploce your answer on the scratch paper clearly labeled
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![**Chemical Reaction Rate Laws**
When the rate for the reaction:
\[ 2 \text{NO} + \text{O}_2 \rightarrow 2 \text{NO}_2 \]
was studied, the rate was found to double when the \(\text{O}_2\) concentration was doubled while the NO concentration was unchanged. It was also found that the rate quadruples when the NO concentration is doubled while the \(\text{O}_2\) concentration is unchanged.
**Questions:**
**a.** What is the rate law expression for this reaction? Place this answer clearly labeled within the answer box in the quiz.
Two mechanisms were proposed for this reaction as shown below.
---
**PROPOSAL I**
**Step 1:** \[ 2 \text{NO} \rightleftharpoons \text{N}_2\text{O}_2 \] (fast)
**Step 2:** \[ \text{N}_2\text{O}_2 + \text{O}_2 \rightarrow 2 \text{NO}_2 \] (slow, RDS)
---
**PROPOSAL II**
**Step 1:** \[ \text{NO} + \text{O}_2 \rightleftharpoons \text{NO}_3 \] (fast)
**Step 2:** \[ \text{NO}_3 + \text{NO} \rightarrow 2 \text{NO}_2 \] (slow, RDS)
**Step 3:** \[ 2 \text{NO}_2 \rightarrow \text{NO}_4 \] (fast)
---
**b.** Write a predicted rate law for each proposed mechanism. In your predicted rate law, make sure no intermediates are present in the overall expression. Show your work on or it will not be awarded. Show your answer to this question on the scratch paper clearly labeled.
**c.** Which proposed mechanism I or II agrees with the rate law expression that you determined above? You must also explain your reasoning or no credit will be given. Place your answer on the scratch paper clearly labeled.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4a31084d-53de-40ac-8333-22b405fb7df5%2F3ddfe8a0-8796-4f73-a47f-19bcb48064b4%2F0fh5lis_processed.png&w=3840&q=75)
Transcribed Image Text:**Chemical Reaction Rate Laws**
When the rate for the reaction:
\[ 2 \text{NO} + \text{O}_2 \rightarrow 2 \text{NO}_2 \]
was studied, the rate was found to double when the \(\text{O}_2\) concentration was doubled while the NO concentration was unchanged. It was also found that the rate quadruples when the NO concentration is doubled while the \(\text{O}_2\) concentration is unchanged.
**Questions:**
**a.** What is the rate law expression for this reaction? Place this answer clearly labeled within the answer box in the quiz.
Two mechanisms were proposed for this reaction as shown below.
---
**PROPOSAL I**
**Step 1:** \[ 2 \text{NO} \rightleftharpoons \text{N}_2\text{O}_2 \] (fast)
**Step 2:** \[ \text{N}_2\text{O}_2 + \text{O}_2 \rightarrow 2 \text{NO}_2 \] (slow, RDS)
---
**PROPOSAL II**
**Step 1:** \[ \text{NO} + \text{O}_2 \rightleftharpoons \text{NO}_3 \] (fast)
**Step 2:** \[ \text{NO}_3 + \text{NO} \rightarrow 2 \text{NO}_2 \] (slow, RDS)
**Step 3:** \[ 2 \text{NO}_2 \rightarrow \text{NO}_4 \] (fast)
---
**b.** Write a predicted rate law for each proposed mechanism. In your predicted rate law, make sure no intermediates are present in the overall expression. Show your work on or it will not be awarded. Show your answer to this question on the scratch paper clearly labeled.
**c.** Which proposed mechanism I or II agrees with the rate law expression that you determined above? You must also explain your reasoning or no credit will be given. Place your answer on the scratch paper clearly labeled.
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