Chapter 11, Problem 11.7P

Interpretation Introduction

Interpretation:

Heat effect in joules per mole of final 20 mol% of LiCl/H₂O solution at 25⁰C prepared by mixing a 25mol% of LiCl/H₂O at 25⁰C with chilled water at 5⁰C should be determined.

Concept introduction:

Heat effect of solution:

$\Delta H={\displaystyle \sum \Delta H_p}-{\displaystyle \sum \Delta H_R}$

Here, $\Delta H_P$is the heat of product streams and $\Delta H_R$ is the heat of reactant streams.

After calculating $\Delta H$, we need to divide this by total no of mol of final stream to get the answer.