What Is the Correct Equilibrium Constant Expression for the Following $K=\frac{\left(P_{\mathrm{HI}}\right)^{2}}{P_{\mathrm{H}_{2}}}$

question 29

Multiple Choice

What is the correct equilibrium constant expression for the following reaction? H₂(g) + I₂(s) ⇌ 2HI(g)

• A) \(K=\frac{\left(P_{\mathrm{HI}}\right)^{2}}{P_{\mathrm{H}_{2}}}\)
• B) \(K=\frac{P_{\mathrm{HI}}}{\left(P_{\mathrm{H}_{2}}\right)^{1 / 2}}\)
• C) \(K=\frac{\left(P_{\mathrm{HI}}\right)^{1 / 2}}{P_{\mathrm{I}_{2}} \times P_{\mathrm{H}_{2}}}\)
• D) \(K=\frac{\left(P_{H I}\right)^{2}}{P_{\mathrm{I}_{2}} P_{\mathrm{H}_{2}}}\)
• E) \(K=\frac{\left(P_{\mathrm{HI}}\right)^{2}}{\left(P_{\mathrm{I}_{2}}\right)^{2} \times\left(P_{\mathrm{H}_{2}}\right)^{2}}\)

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