Chapter 16, Problem 143AE

Interpretation Introduction

Interpretation: The vapor pressure of acetone at $23.5{}^{\text{o}}\text{C}$ needs to be determined.

Concept Introduction: The vapor pressure is pressure exerted by vapors in equilibrium with the liquid or solid state. The Clausius-Clapeyron equation is represented as follows:

  $\ln \left(\frac{P_1}{P_2}\right)=\frac{\Delta H_{vap}}{R}\left(\frac{1}{T_2}-\frac{1}{T_2}\right)$

Here, P₁ is initial pressure, P₂ is final pressure, T₁ is initial temperature and T₂ is final temperature, $\Delta H_{vap}$ is change in enthalpy of vaporization.