2.21-L vessel was found to contain 4.18 x 10 -2 mol of CO 2, 2.81 x 10 -2 mol of CO, and 8.89 x 10 -3 mol of O 2 at 298 K. Is the system at equilibrium for the reaction 2CO 2 ⇌  2CO + O 2? If not, which direction must the reaction proceed to achieve equilibrium? ( Keq = 1.2 x 10 -13)

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