Chapter 8.6, Problem 10P

(A)

Interpretation Introduction

Interpretation:

The vapor pressure of ethanol using the Antoine equation.

Concept Introduction:

The Antoine equation is,

${\log }_{10}\left(P^{sat}\right)=A-\frac{B}{T+C}$

Here, constants are A, B, and C, saturated pressure is $P^{sat}$, and temperature is T.

(B)

Interpretation Introduction

Interpretation:

The vapor pressure of ethanol using the Clausius-Clapeyron equation.

Concept Introduction:

The expression of fugacity is,

$\ln \left(\frac{f}{P}\right)={\displaystyle {\int }_{T=T,P=0}^{T=T,P=P}\left[\frac{Z-1}{P}\right]}dP$

(C)

Interpretation Introduction

Interpretation:

The vapor pressure of ethanol using the shortcut equation.

(D)

Interpretation Introduction

Interpretation:

For each temperature, identify the estimate you consider the most accurate.