AP Chemistry
7.5 Magnitude of the Equilibrium Constant
The synthesis of nitric oxide gas from nitrogen and oxygen gases is represented by the following chemical equation.
\[ \text{N}_2(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{NO}(g) \quad K_c = 4.0 \times 10^{-31} \text{ at } 298\text{ K} \]
A sample of \(\text{N}_2(g)\) and \(\text{O}_2(g)\) is introduced into a rigid container at \(298\text{ K}\) and allowed to reach equilibrium. Which of the following correctly identifies the predominant species in the container at equilibrium and provides the valid justification?
\[ \text{N}_2(g) + \text{O}_2(g) \rightleftharpoons 2\,\text{NO}(g) \quad K_c = 4.0 \times 10^{-31} \text{ at } 298\text{ K} \]
A sample of \(\text{N}_2(g)\) and \(\text{O}_2(g)\) is introduced into a rigid container at \(298\text{ K}\) and allowed to reach equilibrium. Which of the following correctly identifies the predominant species in the container at equilibrium and provides the valid justification?
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