Chapter 9, Problem 9.58SP

Interpretation Introduction

Interpretation:

Calculate the value of $\Delta E$ kilo-joules

Concept introduction:

  $-\text{ w}$ = work done by the system or expansion work
  $+\text{w}$ = work done on the system or compression work
  $\text{ΔH}$is the enthalpy which is basically the heat flow at a constant pressure. It is given by the following expression:
  $\text{ΔH =ΔE+Δ(PV)}$

Given:

Initial volume; ${\text{V}}_{\text{1}}\text{=100}\text{.0 mL(50}\text{.0 mL+50}\text{.0 mL)}$ ,
Final volume; ${\text{V}}_{\text{2}}\text{=50}\text{.0 mL}$ and

  $\text{ΔH }=-\text{0}\text{.31 kJ}$

External pressure; $\text{P=1}\text{.5 atm}$