Chapter 9, Problem 9.11MP

Interpretation Introduction

Interpretation:

The enthalpy of the given reaction using bond enthalpies is to be calculated.

Concept introduction: Bond energy or bond enthalpy is the amount of energy required to break one mole of bonds. Breaking of bonds is an endothermic reaction because energy is always absorbed in the process and its value is always positive. Formation of bonds is an exothermic reaction because energy is always released in the process and its value is always negative.
The enthalpy of a reaction is the change in enthalpy of a system, when reactants change into products. It is denoted by $\Delta H_{\text{rxn}}$ .
The value of $\Delta H_{\text{rxn}}$ is calculated by the formula,

$\text{Δ}{H}_{\text{rxn}}={\displaystyle \sum \left(\text{Δ}{H}_{\text{bonds}\text{broken}}\right)}+{\displaystyle \sum \left(\text{Δ}{H}_{\text{bonds}\text{formed}}\right)}$

To determine: The enthalpy of reaction using bond enthalpies.