(Show your work) Some damage to the ozone layer of the upper atmosphere might involve the reaction NO + 03 NO₂ + O2 The reaction is first order in each reactant and the rate constant is equal to 1.3 x 106 L/(mol s) at 298 K. If the initial concentrations of NO and O3 are both equal to 1.00 x 10-6 mol/L, find the concentrations of NO at t = 2.00 s.

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### Reaction Problem on Ozone Layer

**Problem 6:** *(Show your work)* Some damage to the ozone layer of the upper atmosphere might involve the reaction:

\[
\text{NO} + \text{O}_3 \leftrightarrow \text{NO}_2 + \text{O}_2
\]

The reaction is first order in **each reactant** and the rate constant (k) is equal to \(1.3 \times 10^6 \, \text{L/(mol s)}\) at 298 K. If the initial concentrations of \(\text{NO}\) and \(\text{O}_3\) are both equal to \(1.00 \times 10^{-6} \, \text{mol/L}\), find the concentrations of \(\text{NO}\) at \(t = 2.00 \, \text{s}\).

---

**Solution Methodology:**

1. **Understanding the Reaction:**
   - The reaction involves nitric oxide (\(\text{NO}\)) and ozone (\(\text{O}_3\)) forming nitrogen dioxide (\(\text{NO}_2\)) and oxygen (\(\text{O}_2\)).
   - It is first order with respect to each reactant, hence the rate law is:
     \[
     \text{Rate} = k[\text{NO}][\text{O}_3]
     \]
   
2. **Using Integrated Rate Laws:**
   - For a reaction where both reactants are of first order, use integrated rate laws to determine concentration over time:
     \[
     \text{ln} \left(\frac{[\text{A}]}{[\text{A}]_0}\right) = -kt
     \]
   - However, this equation needs to be adjusted to account for both reactants, typically using logarithmic adjustments for first order interdependence.

3. **Calculations:**
   - Determine the concentration of \([\text{NO}]\) at \(t = 2.00 \, \text{s}\).
   - Given initial concentrations and the rate constant, calculations involve solving for the change in concentration over specified time using the appropriate logarithmic relations.

This is a typical kinetic problem analyzing the degradation of ozone, critical for understanding environmental chemistry impacts, particularly in atmospheric studies.
Transcribed Image Text:### Reaction Problem on Ozone Layer **Problem 6:** *(Show your work)* Some damage to the ozone layer of the upper atmosphere might involve the reaction: \[ \text{NO} + \text{O}_3 \leftrightarrow \text{NO}_2 + \text{O}_2 \] The reaction is first order in **each reactant** and the rate constant (k) is equal to \(1.3 \times 10^6 \, \text{L/(mol s)}\) at 298 K. If the initial concentrations of \(\text{NO}\) and \(\text{O}_3\) are both equal to \(1.00 \times 10^{-6} \, \text{mol/L}\), find the concentrations of \(\text{NO}\) at \(t = 2.00 \, \text{s}\). --- **Solution Methodology:** 1. **Understanding the Reaction:** - The reaction involves nitric oxide (\(\text{NO}\)) and ozone (\(\text{O}_3\)) forming nitrogen dioxide (\(\text{NO}_2\)) and oxygen (\(\text{O}_2\)). - It is first order with respect to each reactant, hence the rate law is: \[ \text{Rate} = k[\text{NO}][\text{O}_3] \] 2. **Using Integrated Rate Laws:** - For a reaction where both reactants are of first order, use integrated rate laws to determine concentration over time: \[ \text{ln} \left(\frac{[\text{A}]}{[\text{A}]_0}\right) = -kt \] - However, this equation needs to be adjusted to account for both reactants, typically using logarithmic adjustments for first order interdependence. 3. **Calculations:** - Determine the concentration of \([\text{NO}]\) at \(t = 2.00 \, \text{s}\). - Given initial concentrations and the rate constant, calculations involve solving for the change in concentration over specified time using the appropriate logarithmic relations. This is a typical kinetic problem analyzing the degradation of ozone, critical for understanding environmental chemistry impacts, particularly in atmospheric studies.
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