Calculate the concentration equilibrium constant KC at 298 K for the reaction N2O4 (g) ⇋  2 NO2 (g) if at this temperature the pressure equilibrium constant is 0.146 bar for the reaction.     5.89 x 10-3 mol dm-3     2.95 x 10-3 mol dm-3                           1.96 x 10-3 mol dm-3            3.01 x 10-3 mol dm-3

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