Hydrogen iodide decomposes according to the equation 2HI(g) H₂(g) + 12(g), for which Kc = 0.0156 at 400°C. Suppose 0.550 mol HI was injected into a 2.00-L reaction vessel at 400°C. What is the concentration of H₂ at equilibrium?

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Hydrogen iodide decomposes according to the equation:

\[ 2 \text{HI(g)} \rightleftharpoons \text{H}_2\text{(g)} + \text{I}_2\text{(g)} \]

For which \( K_c = 0.0156 \) at 400°C. Suppose 0.550 mol HI was injected into a 2.00-L reaction vessel at 400°C. What is the concentration of \(\text{H}_2\) at equilibrium?
Transcribed Image Text:Hydrogen iodide decomposes according to the equation: \[ 2 \text{HI(g)} \rightleftharpoons \text{H}_2\text{(g)} + \text{I}_2\text{(g)} \] For which \( K_c = 0.0156 \) at 400°C. Suppose 0.550 mol HI was injected into a 2.00-L reaction vessel at 400°C. What is the concentration of \(\text{H}_2\) at equilibrium?
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