Write the Kc expression for each of the following equilibrium reactions.

Question

a) 2 O3 (g) 3 O2 (g) b) 2 SO2 (g) + O2 (g) 2 SO3 (g) 

Answer 1

You don't show any reactions. You cannot omit the = or ==> sign. So, I'll assume you mean...

(a) 2O₃(g) ==> 3O₂(g) ... Kc = [O2]³ / [O3]²

(b) 2SO₂(g) + O₂(g) ==> 2SO₃(g) ... Kc = [SO₃]² / [SO₂]²[O2]