We’re being asked to determine the equilibrium constant (K) at 620 K for the given reaction:
Br2(g) + Cl2(g) ⇌ 2 BrCl(g)
Recall that ΔG˚rxn and K are related to each other:
Estimate the value of the equilibrium constant at 620 K for each of the following reactions. ΔG°f for BrCl(g) is ≅ 1.0 kJ/mol.
(1) 2 NO2(g) ⇌ N2O4(g). ΔH°f for N2O4(g) is 9.16 kJ/mol.
(2) Br2(g) + Cl2(g) ⇌ 2 BrCl(g) .ΔH°f for BrCl(g) is 14.6 kJ/mol.
Express your answer using three significant figures.
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