Given the equilibrium reaction: NiO(s) + CO(g) ⇌ Ni(s) + CO₂(g), and an initial non-equilibrium mixture, use an ICE table to determine the equilibrium concentration of CO₂ gas, provided Kc = 15 at the specific temperature.
(a) 5.0 M
(b) 7.5 M
(c) 10.0 M
(d) 12.5 M
