Chapter 18, Problem 18.44QP

(a)

Interpretation Introduction

Interpretation: The values of $\Delta H_{\text{rxn}}^{\text{ο}}$ and $\Delta S_{\text{rxn}}^{\text{ο}}$ for the given reaction are $-12\text{kJ}$ and $-146\text{kJ}$ respectively. On the basis of this information the given questions are to be answered.

Concept introduction: The free energy change of a reaction $\left(\Delta G_{\text{rxn}}^{\text{ο}}\right)$ is calculated by the formula,

$\Delta G_{\text{rxn}}^{\text{ο}}=\Delta H_{\text{rxn}}^{\text{ο}}-T\Delta S_{\text{rxn}}^{\text{ο}}$

To determine: The value of $\Delta G_{\text{rxn}}^{\text{ο}}$ at $298\text{K}$ for the given reaction and values.

(b)

Interpretation Introduction

To determine: The explanation for negative value of $\Delta G_{\text{rxn}}^{\text{ο}}$.