Rates and equilibria
Figure 213
Influence of temperature and pressure
k=k 0 exp(−∆G∗/RT)
as known as the Arrhenius^1 equation
113.1.3 Rate equations and reaction mechanisms
The most important research application of kinetic investigations is the determination of
reaction mechanisms. In fact, the rate expression isfunctionof it.
From a postulated reaction mechanism (themodel), a rate equation can be derived and
used to analyse the experimental data. If the obtained fit is not statistically significant,
the scheme is rejected. In complex systems, several schemes can produce compatible rate
expressions and the problem of model discrimination is of primary importance.