For the reaction at 298 K,
2NO2 (g) ⇌ N2O4 (g)
the values of ΔH° and ΔS° are -58.03 kJ and -176.6 J/K, respectively. What is the value of ΔG° at 298 K? Assuming that ΔH° and ΔS° do not depend on temperature, at what temperature is ΔG° = 0? Is ΔG° negative above or below this temperature?
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