Chapter 18, Problem 80AP

Interpretation Introduction

Interpretation:

The equation $\Delta G=\text{R}T\ln \left(\frac{Q}{K}\right)$ is to bederived and the spontaneity of a reaction is to be predicted.

Concept introduction:

The equation of free energy is $\Delta G=\text{R}T\ln \left(\frac{Q}{K}\right)$.

Here, $\Delta G$ is the free energy change, $\text{R}$ is the universal gas constant, $K$ is the equilibrium constant, and $Q$ is the reaction quotient. This equation is used to find out whether the reaction proceeds in the forward or backward direction.