Chapter 14, Problem 14.137MP

Interpretation Introduction

(a)

Interpretation:

The rate constant for the given reaction needs to be determined.

${\text{NO(g) + F}}_2\text{(g)}\to \text{ NOF(g) + F(g)}$

Concept introduction:

In chemistry, activation energy is the minimum energy which is needed to activate molecules or atoms to a situation in which they can experience chemical transformation. The activation energy is usually denoted by E_aand below is the relation between rate constant and activation energy:

${\text{k = Ae}}^{\frac{-\text{Ea}}{\text{RT}}}$

The above equation is Arrhenius equation.

Here, A is Arrhenius constant, R is Universal gas constant and T is temperature.

Interpretation Introduction

(b)

Interpretation:

Whether the ONF molecule is linear or bent needs to be determined.

Concept introduction:

The geometry of the molecule can be determined by calculating the hybridization of the central atom in the molecule. The lone pair of electron/s present in the central atom plays an important role in determining the exact geometry or shape of the molecule.

Interpretation Introduction

(c)

Interpretation:

A plausible transition state for the below reaction needs to be drawn.

${\text{NO(g) + F}}_2\text{(g)}\to \text{ NOF(g) + F(g)}$

Concept introduction:

Transition state is defined as an intermediate state of the reaction. It is less stable and immediately converts to product.

Interpretation Introduction

(d)

Interpretation:

The reason for the low activation energy of the given reaction needs to be explained.

Concept introduction:

The activation energy for a reaction is defined as the minimum energy which is needed for a reaction to takes place.