2) Calculate the standard free energy change at 25°C for the reaction 2 NO(g) + O2(g) → 2 NO2(g). Species NO (g) 02 (g) NO₂ (g) AHᵒf, kJ/mol | Sº, J/(K · mol) 210.7 205.0 240.0 91.3 0.0 33.2

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