Chapter 9, Problem 9.25P

Interpretation Introduction

Interpretation:

Whether the given reaction is spontaneous or non-spontaneous at $25{}^o\text{C}$ needs to be determined. The temperature at which the changeover occurs needs to be determined.

Concept introduction:

The relation between change in enthalpy, change in Gibbs free energy and change in entropy is represented as follows:

$\Delta G^{\text{o}}=\Delta H^{\text{o}}-T\Delta S^{\text{o}}$

Here, $\Delta G^{\text{o}}$ is change in Gibbs free energy, $\Delta H^{\text{o}}$ is change in enthalpy, T is temperature and $\Delta S^{\text{o}}$ is change in entropy.