Dinitrogen tetraoxide exists in equilibrium with nitrogen dioxide: N2O4(g) 2NO2(g). At a certain temperature, K = 6.98 x 104. Which of the following statements is true about this reaction?
a. the concentration of NO2 is equal to the concentration of N2O4 at equilibrium
b. the rate of dissociation of N2O4 is equal to the rate of formation of NO2 at equilibrium
c. the reaction will reach equilibrium rapidly
d. the rate constant for the forward reaction is equal to the rate constant for the reverse reaction at equilibrium
e. two of the above
Answer: b. the rate of dissociation of N2O4 is equal to the rate of formation of NO2 at equilibrium