Chapter 12, Problem 11E

Interpretation Introduction

Interpretation:

The lattice energy of lithium iodide is given to be $-7.3\times {10}^2\text{kJ}/\text{mol}$ and heat of hydration is $-793\text{kJ}/\text{mol}$ . The heat of solution and amount of heat evolved or absorbed for complete dissolution of $15\text{g}$ lithium chloride in water is to be calculated.

Concept introduction: The heat of solution is calculated by the formula,

  $\Delta H_{\text{soln}}=\Delta H_{\text{solute}}+\Delta H_{\text{Hydration}}$

To determine: The heat of solution and amount of heat evolved or absorbed for complete dissolution of $15\text{g}$ lithium chloride in water.