AP Chemistry
7.2 Direction of Reversible Reactions
7.1 Introduction to Equilibrium
A sealed, rigid reaction vessel is initially charged with \(\text{H}_2\text{(g)}\) and \(\text{I}_2\text{(g)}\) at a constant temperature. The mixture reacts and reaches chemical equilibrium according to the following equation:
\[ \text{H}_2\text{(g)} + \text{I}_2\text{(g)} \rightleftharpoons 2\,\text{HI(g)} \]
Once equilibrium is established, the concentration of each species in the vessel remains constant over time. Which of the following statements correctly explains this observation?
\[ \text{H}_2\text{(g)} + \text{I}_2\text{(g)} \rightleftharpoons 2\,\text{HI(g)} \]
Once equilibrium is established, the concentration of each species in the vessel remains constant over time. Which of the following statements correctly explains this observation?
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