Chapter 12, Problem 12.31CP

(a)

Interpretation Introduction

Interpretation:

The rate law of the given reaction has to be given.

Concept introduction:

Rate law:

It is an equation that related to the dependence of the reaction rate on the concentration of each substrates (reactants).

$\begin{array}{l}\text{For}\text{a}\text{reaction}\\ \\ \text{aA}\text{+}\text{bB}\stackrel{}{\to }\text{Products}\\ \\ \text{A}\text{and}\text{B}\text{are}\text{reactants}\text{and}\text{a}\text{and}\text{b}\text{are}\text{stoichiometric}\text{coefficients}\text{.}\\ \\ \text{Rate}\text{=}\text{-}\frac{\text{Δ}\left[\text{A}\right]}{\text{Δt}}\text{=}\text{k}{\left[\text{A}\right]}^{\text{m}}{\left[\text{B}\right]}^{\text{n}}\\ \\ \text{where,}\text{k}\text{-}\text{rate}\text{constant}\text{.}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The mechanism of the given reaction that agrees with the rate law has to be given.

Concept introduction:

Reaction mechanism:

The sequence of reaction steps which describes the clear pathway from reactants to products is known as reaction mechanism.

(c)

Interpretation Introduction

Interpretation:

The catalyst and intermediate has to be identified from the given reaction.

Concept introduction:

Intermediate: Intermediate is a short lived molecule of a particular reaction which is formed from reactant molecules and then reacts further to form products. These molecule entities are not found in the overall reaction.

Catalyst: The catalyst is a chemical substance that increases the rate of the reaction without participating in the reaction by reducing the activation energy of the reaction.