Chapter 18, Problem 18.10A

Interpretation Introduction

Interpretation:

The signs of $\Delta H$, $\Delta S$ and $\Delta G$ for the spontaneous reaction between A and B atoms should be determined.

Concept introduction:

The formula that determines spontaneity of the reaction is,

$\Delta G=\Delta H-T\Delta S$

Where,

• $\Delta G$ is the change in the Gibbs free energy.
• $\Delta H$ is the change in the enthalpy.\
• $\Delta S$ is the change in entropy.

$\Delta G$ is negative as free energy change for any spontaneous reaction is negative and $\Delta S$ is positive for any spontaneous reaction.