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title: "The following reversible reactions and their corresponding equilibrium constants occur during atmospheric gas-phase processes at \\(298\\text{ K}\\):  \\[\\text{Reaction 1: } \\text{SO}_2(g) + \\text{NO}_2(g) \\rightleftharpoons \\text{SO}_3(g) + \\text{NO}(g) \\quad K_1\\] \\[\\text{Reaction 2: } 2\\,\\text{SO}_2(g) + \\text{O}_2(g) \\rightleftharpoons 2\\,\\text{SO}_3(g) \\quad K_2\\]  An atmospheric chemist investigates the net oxidation of nitric oxide to nitrogen dioxide, represented by the following target reaction:  \\[\\text{Reaction 3: } 2\\,\\text{NO}(g) + \\text{O}_2(g) \\rightleftharpoons 2\\,\\text{NO}_2(g) \\quad K_3\\]  Which of the following expressions correctly relates the equilibrium constant \\(K_3\\) to \\(K_1\\) and \\(K_2\\)?"
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date_modified: "2026-09-28T12:30:22+00:00"
---

# The following reversible reactions and their corresponding equilibrium constants occur during atmospheric gas-phase processes at \(298\text{ K}\):

\[\text{Reaction 1: } \text{SO}_2(g) + \text{NO}_2(g) \rightleftharpoons \text{SO}_3(g) + \text{NO}(g) \quad K_1\]
\[\text{Reaction 2: } 2\,\text{SO}_2(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{SO}_3(g) \quad K_2\]

An atmospheric chemist investigates the net oxidation of nitric oxide to nitrogen dioxide, represented by the following target reaction:

\[\text{Reaction 3: } 2\,\text{NO}(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{NO}_2(g) \quad K_3\]

Which of the following expressions correctly relates the equilibrium constant \(K_3\) to \(K_1\) and \(K_2\)?

The following reversible reactions and their corresponding equilibrium constants occur during atmospheric gas-phase processes at \(298\text{ K}\):

\[\text{Reaction 1: } \text{SO}_2(g) + \text{NO}_2(g) \rightleftharpoons \text{SO}_3(g) + \text{NO}(g) \quad K_1\]
\[\text{Reaction 2: } 2\,\text{SO}_2(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{SO}_3(g) \quad K_2\]

An atmospheric chemist investigates the net oxidation of nitric oxide to nitrogen dioxide, represented by the following target reaction:

\[\text{Reaction 3: } 2\,\text{NO}(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{NO}_2(g) \quad K_3\]

Which of the following expressions correctly relates the equilibrium constant \(K_3\) to \(K_1\) and \(K_2\)?

- **A.** \(K_3 = (K_1)^2 K_2\)
- **B.** \(K_3 = \dfrac{K_2}{(K_1)^2}\)
- **C.** \(K_3 = \dfrac{(K_1)^2}{K_2}\)
- **D.** \(K_3 = \dfrac{K_2}{K_1}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/123803/*