Chapter 8.13, Problem 1PPA

Interpretation Introduction

Interpretation:

The enthalpy of the reaction, for the combustion of CO and ${\text{O}}_2$ to form ${\text{CO}}_2$, is to be determined.

Concept introduction:

Bond enthalpy is defined as the energyrequired to break a bond in one mole of the gaseous molecule.

The enthalpy of a reaction is calculated by the expression as follows:

$\Delta H^{\circ }=\sum \text{BE}\left(\text{reactants}\right)-\sum \text{BE}\left(\text{products}\right)$

Here, $\Delta H^{\circ }$ is the enthalpy of the reaction, $\sum \text{BE}\left(\text{reactants}\right)$ is the sum of the average bond enthalpies of the reactant, and $\sum \text{BE}\left(\text{products}\right)$ is the sum of the average bond enthalpy of the product.