How do I calculate reaction free energy?

(10 points please help!) Calculate the free energy of the reaction?

  • 2NO2(g) <----> N2O4(g) ; deltaH= -56.8 kJ deltaS= -175 J/K In a container at 298 K, N2O4 and NO2 are mixed with initial partial pressures of 2.4 atm and 0.42 atm respectively. Calculate the free energy of the reaction.

  • Answer:

    dG = dH - TdS

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