Chapter 18.4, Problem 5PPC

Interpretation Introduction

Interpretation:

The graphs which represent the best relationship between K and $E^{\circ }$ for a chemical reaction should be identified form the given graphs.

Concept introduction:

According Nernst equation:

The relation between ${\text{ΔG}}^{0}and{\text{E}}_{\text{cell}}^{\text{0}}$ is,

${\text{ΔG}}^0\text{=}-{\text{nFE}}_{\text{cell}}^{\text{0}}$

The relation between ${\text{ΔG}}^{0}and\text{K}$ is,

${\text{ΔG}}^0\text{=}-\text{RT}\text{ln}\text{K}$

$\begin{array}{c}{\text{ΔG}}^0=\text{Standard}\text{free}\text{energy change}\\ {\text{E}}_{\text{cell}}^{\text{0}}\text{=}\text{Standard}\text{electrochemical}\text{cell}\text{potential}\\ \text{F}\text{=}\text{Faraday}\text{constant}\\ \text{n}\text{=}\text{number}\text{of}\text{electrons}\text{passed}\text{from}\text{anode}\text{to}\text{cathode}\end{array}$