Chapter 19.7, Problem 19.7.4SR

Interpretation Introduction

Interpretation:

The rate law for the given chemical equation should be determined using the given mechanism.

Concept introduction:

In order to establish the plausibility of a mechanism, one must compare the rate law of the rate determining step to the experimentally determined rate law.

${\text{2NO + O}}_{\text{2}}{\text{ = 2NO}}_{\text{2}}\text{.}$

This reaction has been well established as a third-order homogeneous reaction.

Rate determining step: In a chemical reaction the rate determining step is the slowest step in which the rate of the reaction depends on the rate of that slowest step.

Rate law: It is generally the rate equation that consists of the reaction rate with the concentration or the pressures of the reactants and constant parameters.