The following reaction proceeds in one stage: 2NO2rightarrow N2O4 Choose the rate law for direct reaction. A V=k[NO2] C V=k[N2O4] B V=k[NO2]^2 D: V=kast 2[NO2]

The rate law for a reaction is determined by the rate-determining step, which is the slowest step in the reaction mechanism. In this case, the reaction is a one-stage reaction, which means it proceeds in a single step. The rate law for a one-stage reaction is determined by the concentration of the reactants. In this case, the reactant is NO2, so the rate law is V = k[NO2], where V is the rate of the reaction, k is the rate constant, and [NO2] is the concentration of NO2. Therefore, the correct answer is A: V = k[NO2].