In this chapter we have seen a number of reactions in which a
single reactant forms products. For example, consider the following
However, we also learned that gas-phase reactions occur through
a. One possible explanation is that two molecules of CH3NC
collide with each other and form two molecules of the product
in a single elementary step. If that is the case, what reaction
order would you expect?
b. Another possibility is that the reaction occurs through more
than one step. For example, a possible mechanism involves
one step in which the two CH3NC molecules collide, resulting
in the 'activation' of one of them. In a second step, the activated
molecule goes on to form the product. Write down this
mechanism and determine which step must be rate determining
in order for the kinetics of the reaction to be first order.
Show explicitly how the mechanism predicts first-order