N2O4 and NO2, air pollutants, are in equilibrium as indicated: N2O4 2 NO2. In an experiment, at CNTP, 1.50 moles of N2O4 was introduced into a 2.0 ...

N2O4 and NO2, air pollutants, are in equilibrium as indicated: N2O4 2 NO2. In an experiment, at CNTP, 1.50 moles of N2O4 was introduced into a 2.0 L reactor. After the equilibrium was established, the concentration of NO2 was 0.060. The value of Kc (in terms of concentrations) of this equilibrium is:


A. 2.4 x 10^-3
B. 4.8 x 10^-3
C. 5.0 x 10^-4
D. 5.2 x 10^-3
E. 8.3 x 10^-2