A stoichiometric mixture containing equal amounts of \(\text{N}_2\text{(g)}\) and \(\text{O}_2\text{(g)}\) is placed in a rigid container at \(1500 \text{ K}\) and allowed to reach equilibrium according to the following equation: \[ \text{N}_2\text{(g)} + \text{O}_2\text{(g)} \rightleftharpoons 2\,\text{NO(g)} \quad K_c = 1.0 \times 10^{-5} \text{ at } 1500 \text{ K} \] Which of the following particulate diagrams best represents the mixture at equilibrium?