Estimate the value of the equilibrium constant at 625 K for each of the following reactions. ΔG^∘f for BrCl(g) is −1.0 kJ/mol. The standard molar entropy, S^∘, for BrCl(g) is 240.0 J/mol⋅K

1- 2NO2(g)⇌N2O4(g). ΔH^∘f for N2O4(g) is 9.16 kJ/mol.

2- Br2(g)+Cl2(g)⇌2BrCl(g) .ΔH^∘f for BrCl(g) is 14.6 kJ/mol.