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At 25°C, the second-order reaction NOC(g) NO(g) + 2Cl2(9)is 50% complete after 5.82 hours when the initial concentration of NOCI is 4.46 mol/L. How long will it take for the reaction to be 75% complete? Multiple Choice 23.0 hr 116 hr

At 25°C, the second-order reaction NOC(g) NO(g) + 2Cl2(9)is 50% complete after 5.82 hours when the initial concentration of NOCI is 4.46 mol/L. How long will it take for the reaction to be 75% complete? Multiple Choice 23.0 hr 116 hr

Chemistry
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
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**Educational Content Transcription: Reaction Completion** At 25°C, the second-order reaction \( \text{NOCl (g)} \rightarrow \text{NO (g)} + \frac{1}{2} \text{Cl}_2 \text{(g)} \) is 50% complete after 5.82 hours when the initial concentration of \(\text{NOCl}\) is 4.46 mol/L. How long will it take for the reaction to be 75% complete? **Multiple Choice:** - 23.0 hr - 11.6 hr - 8.22 hr - 10.5 hr **Explanation:** This question involves a second-order chemical reaction with respect to the decomposition of NOCl. Students are asked to determine the time required for the reaction to reach 75% completion using the provided data on the time taken to reach 50% completion. **Note if Graphs or Diagrams Were Present:** Currently, there are no graphs or diagrams associated with this question. If a diagram of a typical second-order reaction curve were provided, it would show the concentration of \(\text{NOCl}\) decreasing over time, illustrating how the concentration declines more sharply at the beginning and levels out as the reaction progresses. The graph of concentration (\(\text{NOCl}\)) versus time would typically display a curve that begins steep and becomes more gradual as it approaches completion, characteristic of second-order reactions. Understanding this would provide learners with a visual representation of how reaction rates change over time.
Transcribed Image Text:**Educational Content Transcription: Reaction Completion** At 25°C, the second-order reaction \( \text{NOCl (g)} \rightarrow \text{NO (g)} + \frac{1}{2} \text{Cl}_2 \text{(g)} \) is 50% complete after 5.82 hours when the initial concentration of \(\text{NOCl}\) is 4.46 mol/L. How long will it take for the reaction to be 75% complete? **Multiple Choice:** - 23.0 hr - 11.6 hr - 8.22 hr - 10.5 hr **Explanation:** This question involves a second-order chemical reaction with respect to the decomposition of NOCl. Students are asked to determine the time required for the reaction to reach 75% completion using the provided data on the time taken to reach 50% completion. **Note if Graphs or Diagrams Were Present:** Currently, there are no graphs or diagrams associated with this question. If a diagram of a typical second-order reaction curve were provided, it would show the concentration of \(\text{NOCl}\) decreasing over time, illustrating how the concentration declines more sharply at the beginning and levels out as the reaction progresses. The graph of concentration (\(\text{NOCl}\)) versus time would typically display a curve that begins steep and becomes more gradual as it approaches completion, characteristic of second-order reactions. Understanding this would provide learners with a visual representation of how reaction rates change over time.
The image displays a section of a multiple-choice question, presumably as part of an educational quiz or test. The question itself is not visible, but several answer options are provided as follows: 1. 23.0 hr 2. 11.6 hr 3. 8.22 hr 4. 15.5 hr 5. 17.5 hr Each option is preceded by a radio button, allowing the user to select one answer. There are no graphs or diagrams accompanying the question. The bottom of the interface shows "Prev" and "Next" buttons, suggesting that this is part of a sequence of questions and this particular item is number 9 out of 18.
Transcribed Image Text:The image displays a section of a multiple-choice question, presumably as part of an educational quiz or test. The question itself is not visible, but several answer options are provided as follows: 1. 23.0 hr 2. 11.6 hr 3. 8.22 hr 4. 15.5 hr 5. 17.5 hr Each option is preceded by a radio button, allowing the user to select one answer. There are no graphs or diagrams accompanying the question. The bottom of the interface shows "Prev" and "Next" buttons, suggesting that this is part of a sequence of questions and this particular item is number 9 out of 18.
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