Chapter 11, Problem 39E

Interpretation Introduction

Interpretation:

The enthalpy of the solution per mole of solid Sodium Iodide to be calculated and the process to which this enthalpy change applies to be described.

Concept introduction

Hess’s law:  Hess's law states that the change of enthalpy in a chemical reaction (i.e. the heat of reaction at constant pressure) is independent of the pathway between the initial and final states.

${\text{ΔH}}^{\text{0}}={{\displaystyle \sum {\text{ΔH}}^{\text{0}}}}_{\text{f (product)}}-{{\displaystyle \sum {\text{ΔH}}^{\text{0}}}}_{\text{f (reactant)}}$