GKFix MCQ Question

What is the correct balanced equation for the equilibrium expression Kc = [NH3]^4[O2]^5 / [NO]^4[H2O]^6?

• A. 4NH3 + 5O2 ⇌ 4NO + 6H2O
• B. 4NO + 6H2O ⇌ 4NH3 + 5O2
• C. 4NH3 + 6H2O ⇌ 4NO + 5O2
• D. 4NO + 5O2 ⇌ 4NH3 + 6H2O