Consider three individual gas-phase collisions between species A and B that occur at 300 K.
(i) The relative kinetic energy equals the activation energy, and the molecular orientation is favorable for bond formation.
(ii) The relative kinetic energy is twice the activation energy, but the molecular orientation does not allow the required bonds to form.
(iii) The relative kinetic energy is 0.8 times the activation energy, and the molecular orientation is favorable for bond formation.
For each case, state whether the collision is expected to be successful or unsuccessful in forming products, and give a brief justification.