Consider the exothermic reaction of nitrogen dioxide, a brown-colored pollutant gas forming dinitrogen tetroxide, a colorless gas. 2NO2(g) 2 N¿O4(g) If the equilibrium concentration of nitrogen dioxide and dinitrogen tetroxide were 0.05 M and 1 x 105 M respectively, what would be the value of K.? А. 4 х 103 В.5 х 103 С.2 х 104 D. 2 x 109

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