Chapter 10, Problem 111CWP

Interpretation Introduction

Interpretation: The enthalpy $\text{ΔH}$ of solution per mole of solid $\text{NaCl}$ should be calculated.

Concept Introduction:

Hess's Law:

• The changing enthalpy of a chemical is self-determining of the route by which the chemical process occurs.
• The enthalpy change of the reaction is equal to in which reaction is occurs whether it is in one or multiple steps.

• Formula:

                               $\text{ΔH}\left(\text{total}\right)\text{= }{\displaystyle \sum \text{ΔH}}\left(\text{steps}\right)\mathrm{......}\text{(1)}$