At 2000 °C, the equilibrium constant for the reaction 2NO(g) ⇌ N2(g) + O2(g) is Kc = 2.4 × 10^3. If the initial concentration of NO is 0.171 M, what is the equilibrium concentration of NO?
Incorrect answers: 8.38 M, 0.0018 M, 1.8 × 10^-3 M, 0.085 M, 4 × 10^-6 M, 0.000004 M.