Chapter 17, Problem 65E

Interpretation Introduction

Interpretation:

The standard state is redefined as $\text{P}=2\text{atm}$ . The new standard value of ${\text{ΔG}}_{\text{f}}^{\text{ο}}$ for each of the given substance is to be calculated.

Concept introduction:The standard Gibbs free energy of formation of a compound is change in Gibbs free energy during the formation of one mole of a substance at standard temperature and pressure. The relation between ${\text{ΔG}}_{\text{f}}^{\text{ο}}$ , ${\text{ΔS}}_{\text{f}}^{\text{ο}}$ and ${\text{ΔH}}_{\text{f}}^{\text{ο}}$ is,

${\text{ΔG}}_{\text{f}}^{\text{ο}}={\text{ΔH}}_{\text{f}}^{\text{ο}}-T{\text{ΔS}}_{\text{f}}^{\text{ο}}$

To determine:The new standard value of ${\text{ΔG}}_{\text{f}}^{\text{ο}}$ for each of the given substance.