Consider the reaction N₂O₄ (g)⇔ 2NO₂ (g)with Kc = 0.211. Which of the following pairs of concentrations indicate that the system is not at equilibrium?

Question

Quizplus · Accepted Answer

To determine whether the system is at equilibrium or not, we need to calculate the reaction quotient (Qc) using the given concentrations and compare it with the equilibrium constant (Kc). If Qc ≠ Kc, the system is not at equilibrium. Qc = [NO₂]2 /[N₂O₄] = (0.0572 M)2 / (0.00840 M) = 0.3906 Since Qc ≠ Kc (0.3906 ≠ 0.211), the system is not at equilibrium. Therefore, the correct answer is D.

Consider the Reaction N2O4 (G)⇔ 2NO2 (G)with Kc = 0

Consider the Reaction N₂O₄ (G)⇔ 2NO₂ (G)with Kc = 0