Chapter 14, Problem 14.106P

Interpretation Introduction

Interpretation:

The heat of solution of the hydronium ion has to be calculated.

Concept Introduction:

Hess's law:

Hess's law state that the different in enthalpy change of reactant to product is known as enthalpy change of a reaction.

The enthalpy change reactant to product is calculated by subtraction of standard enthalpy of formation (SEF) of reactant from SEF product.

    $\begin{array}{l}{\text{ΔH}}_{{}_{\text{reaction}}}^{\text{o}}\text{=}{\displaystyle \sum {\text{mΔH}}_{{}_{\text{product}}}^{\text{o}}}\text{-}{\displaystyle \sum {\text{nΔH}}_{{}_{\text{reactant}}}^{\text{o}}}\\ \text{where,}\\ {\text{ΔH}}_{{}_{\text{reaction}}}^{\text{o}}\text{=}\text{enthalpy change}\text{ofreaction}\\ {\text{ΔH}}_{{}_{\text{Product}}}^{\text{o}}\text{=}\text{standard enthalpy of formation of reactant}\\ {\text{ΔH}}_{{}_{\text{reactant}}}^{\text{o}}\text{=standard enthalpy of formation of product}\end{array}$