Dinitrogen tetroxide partially decomposes according to the following equilibrium: N2O4 (g) →2NO2 (g) A 1.000-L flask is charged with 1.00 ⋅⋅ 10-2 mol of N2O4. At equilibrium, 6.61 ⋅ 10-3 mol of N2O4 remains. Keq for this reaction is ________. A. 0.207 B. 6.94 ⋅ 10-3 C. 3.39 ⋅ 10-5 D. 0.203 E. 0.212

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