Chapter 17, Problem 17.85QE

(a)

Interpretation Introduction

Interpretation:

The value of $\text{ΔG}$ at the given $\text{298K}$ has to be calculated.

Concept Introduction:

Gibb’s free energy: The energy available to do work and also used to determine the spontaneity of a reaction. The energy released by the overall system.

Relation between Free energy and equilibrium constant:

  $\begin{array}{l}\text{ΔG}\text{=}{\text{ΔG}}^{\text{o}}\text{+}\text{RTln}\text{Q}\\ \text{where,}\\ {\text{ΔG}}^{\text{o}}\text{is}\text{Gibbs}\text{free}\text{energy,}\\ \text{R}\text{is}\text{constant,}\\ \text{T is temperature}\\ \text{Q}\text{is}\text{reaction quotient}\text{.}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The direction in which the reaction is spontaneous has to be predicted.