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1. For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1...

1. 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?°=−69.0 kJ/mol . What is ΔG for this reaction at 298 K when the partial pressures are ?NO=0.500 atm , ?O2=0.400 atm , and ?NO2=0.900 atm ?

2. Given the following information

A+B⟶2D Δ?∘=656.0 kJ Δ?∘=291.0 J/K

C⟶D ΔH°=467.0 kJ ΔS°=−116.0 J/K

calculate ΔG° at 298 K for the reaction

A+B⟶2C

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