Composite Reactions & the Steady State Approximation

DECOMPOSITION OF AZOMETHANE

Hint

The Steady State Approximation (SSA) is the setting of the rate of change of concentration of a species equal to zero. It is usually applied to the intermediate species, provided that the intermediate is highly reactive and present in low concentrations.

Application of the Steady State Approximation

A (model) plot of the concentration profiles of the species involved in the decomposition of azomethane is given below.
[Azomethane Plot]

Given this, if the Steady Approximation is to be used, it should be applied to

d[C2H6]/dt

d[AZO]/dt

d[AZO*]/dt

d[N2]/dt