For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction   2NO(g)+O2(g)↽−−⇀2NO2(g)   the standard change in Gibbs free energy is Δ?°=−32.8 kJ/mol. What is ΔG for this reaction at 298 K when the partial pressures are ?NO=0.500 atm, ?O2=0.350 atm, and ?NO2=0.800 atm?

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