The equilibrium constant, Kc, for the following reaction is 2.90x10-2 at 1.15×103K. 2503(g) 2sO2(g) + 02(9) If an equilibrium mixture of the three gases in a 17.7 L container at 1.15x103K contains 0.209 mol of SO3(g) and 0.401 mol of SO2, the equilibrium concentration of 02 is M.

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