Chapter 15, Problem 54A

Interpretation Introduction

Interpretation:

The change in chemical potential energy of a system during an endothermic reaction is to be explained.

Concept introduction:

Chemical potential energy: An energy stored in the chemical bonds of a substance due to the arrangement of the atoms and molecules is called chemical potential energy.

Endothermic reaction: The reaction which occurs by absorption of chemical potential energy is called as endothermic reaction.

Answer to Problem 54A

The chemical potential energy of a system increases during an endothermic process.

Explanation of Solution

As endothermic reactions involve absorption of energy, therefore energy of system after the reaction will be more than energy before the reaction.

Conclusion

If a reaction is endothermic, chemical potential energy of the system increases during the reaction.