Chapter 11, Problem 56QRT

(a)

Interpretation Introduction

Interpretation:

The fraction of molecules whose collisions would be energetic enough to react at ${400}^{o}C$ has to be calculated.

Concept Introduction:

The temperature dependence of rate constant can be explained through Arrhenius equation.

  $k=A{e}^{\frac{-E_a}{RT}}$

Where $k$ is the rate constant, $A$ is the frequency factor, $E_a$ is the activation energy, $R$ is the universal gas constant and $T$ is the temperature.

The exponential part $e^{\frac{-E_a}{RT}}$ is the fraction of sufficiently energetic molecules.

(b)

Interpretation Introduction

Interpretation:

The fraction of molecules whose collisions would be energetic enough to react at ${600}^{o}C$ has to be calculated.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The fraction of molecules whose collisions would be energetic enough to react at ${500}^{o}C$ has to be calculated.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

The fraction of molecules whose collisions would be energetic enough to react at ${1000}^{o}C$ has to be calculated.

Concept Introduction:

Refer to part (a).