AP Chemistry
9.5 Free Energy and Equilibrium
At \(300\text{ K}\), the reaction represented below has a standard Gibbs free energy change of \(\Delta G^\circ = -11.5\text{ kJ/mol}\). \[ 2\,\text{NO}_2(g) \rightleftharpoons \text{N}_2\text{O}_4(g) \] Given that \(R = 8.3\text{ J}/(\text{mol}\cdot\text{K})\) and \(\ln(10) \approx 2.30\), which of the following is closest to the value of the equilibrium constant, \(K\), at \(300\text{ K}\)?
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