Chapter 5.9, Problem 1PPC

Interpretation Introduction

Interpretation:

The standard enthalpy of formation for the given reaction is to be calculated.

Concept introduction:

The standard enthalpy of the reaction is to be determined using the equation given below:

$\Delta H{°}_{\text{rxn}}={\displaystyle \sum n}\Delta H_{\text{f}}^{\text{°}}\left(\text{products}\right)-{\displaystyle \sum m}\Delta H_{\text{f}}^{\text{°}}\left(\text{reactants}\right)$

Here, the stoichiometric coefficients are represented by m for reactants and n for products, and the enthalpy of formation at standard conditions is represented by $\Delta H_{\text{f}}^{\text{°}}$.

The value of enthalpy of formation of an element is zero at its most stable state.