Using enthalpies of formation (See the Supplemental Data), calculate ΔH° (in kJ) for the following reaction at 25°C. Also calculate ΔS° (in J/K) for this reaction from standard entropies at 25°C. Use these values to calculate ΔG° (in kJ) for the reaction at this temperature. 4 HCN(l) + 5 O2(g) → 2 H2O(g) + 4 CO2(g) + 2 N2(g)

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