Chapter 10, Problem 10.21P

Interpretation Introduction

Interpretation:

To estimate $\frac{f}{f^{sat}}$ for liquid water at 150 ⁰C and 150 bar

Concept Introduction :

  $f=\left[\varphi \times P_{sat}\times \exp \left[\frac{V_{sat}\times (P-P_{sat})}{R\times T}\right]\right]$

Where,

R = Universal Gas constant = 8.314×10-5 m³bar/mol.K

T = Temperature = 150 ⁰C = 423.15 K

T_c = Critical Temperature

P_c = Critical Pressure

  $\varphi$ = Fugacity Coefficient = $\frac{f}{P}$

P = Pressure = 150 bar

f = Fugacity

P_sat = Pressure of Saturated steam from steam tables

f _sat= Fugacity of saturated liquid

  $\varphi$_sat = Fugacity Coefficient of saturated liquid

m = Molecular weight