Chapter 2, Problem 2C.7BE

Interpretation Introduction

Interpretation: The values of ${\Delta }_{\text{r}}H°$ and ${\Delta }_{\text{r}}U°$ at $298\text{K}$ has to be calculated for the given reaction.

Concept introduction: Enthalpy is the internal heat content of the system.  Under constant pressure, a system can do expansion work under the effect of energy supplied as heat known as enthalpy change of the system.  Therefore, the measure of amount of heat supplied to the system gives the enthalpy change of the system.  The total amount of energy possessed within the given system is known as internal energy of the system. It is denoted by $U$.