A chemical reaction reaches equilibrium when the rate of the forward reaction equals the rate of the reverse reaction. Consider the following equilibrium reaction:
A(g) + 2B(g) <=> C(g) + D(g)
At a certain temperature, the equilibrium constant, Kc, for this reaction is measured to be 2.5. If 0.5 moles of gas A, 1.0 moles of gas B, and 0.5 moles of gases C and D are mixed in a 1.0 L container, which of the following statements is true regarding the reaction at the equilibrium state?