Chapter 13, Problem 52E

Interpretation Introduction

Interpretation:

The reason for the importance of $\text{ΔrG°}$ in the chemical reaction even when the reaction is carried out under nonstandard conditions should be determined.

Concept introduction:

$\text{ΔrG°}$ represent the free energy change for a chemical reaction at the standard conditions of T and P. It is related to enthalpy, entropy and even with equilibrium constant for the equilibrium reactions. The relation can be shown as:

$\text{ΔrG}°\text{ = ΔrH}°\text{ - TΔrS}°$

$\text{ΔrG° = - 2}\text{.303 RT log K}$

$\text{ΔrG = ΔrG°- 2}\text{.303 RT log K}$