Chemistry

Chemistry

Problem

For the reaction 2 NO2(g)⇌N2O4(g)2\,\mathrm{NO_2(g)} \rightleftharpoons \mathrm{N_2O_4(g)}, the standard enthalpy change is ΔH∘=−92.5 kJ mol−1\Delta H^\circ = -92.5\,\text{kJ mol}^{-1} and the standard entropy change is ΔS∘=−180 J mol−1 K−1\Delta S^\circ = -180\,\text{J mol}^{-1}\,\text{K}^{-1}. Determine the equilibrium constant KK at 350 K.

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