Chapter 16, Problem 5RQ

Interpretation Introduction

Interpretation:

Whether conversation between ${\text{NO}}_{\text{2}}$ and ${\text{N}}_2{\text{O}}_4$ is exothermic or endothermic has to be determined.

Concept Introduction:

An endothermic reaction happens when energy is absorbed from surroundings in form of heat and exothermic reaction is defined as when energy is released from system into surroundings.