The gas-phase reaction A2(g)+B2(g)→2 AB(g) is assumed to occur in a single step. Two experiments were done at the same temperature inside rigid containers. The initial partial pressures of A2 and B2 used in experiment 1 were twice the initial pressures used in experiment 2. Which statement provides the best comparison of the initial rate of formation of AB in experiments 1 and 2 ? a. The initial rate of formation of AB is the same in both experiments because they were done at the same temperature and the frequency and energy of the collisions between A2 and B2 would have been about the same.
b. The initial rate of formation of AB is slower in experiment 1 than in with experiment 2 because at the same temperature, a higher pressure would reduce the volume available for A2 and Bmolecules to achieve the proper orientation for a successful collision.
c. The initial rate of formation of AB is faster in experiment 1 than in experiment 2 because at a higher pressure the collisions between A, and B, molecules would have been more frequent, increasing the probability of a successful collision.
d. The initial rate of formation of AB is faster in experiment 1 than in experiment 2 because at a higher pressure a (D) larger fraction of the A and B, molecules would have the minimum energy required to overcome the activation energy barrier.