Chapter 10, Problem 10.31P

Interpretation Introduction

Interpretation:

Estimation of the fugacity coefficients as function of composition for propane and n-pentane in a binary vapor mixture and draw the result in one graph.

Concept introduction:

The calculation of fugacity coefficient of gases in the gas mixture is possible by using different correlation given as follows:

The fugacity coefficient for gas can be calculated by the equation given in the book as follows:

  $\widehat{{\varphi }_i}=\exp \left[\frac{P}{RT}\left[B_{i,i}+{\displaystyle \sum _i{\displaystyle \sum _j{y}_i{y}_j{\delta }_{i,j}}}\right]\right]$

Where,

  ${\delta }_{i,j}=2B_{i,j}-B_{i,i}-B_{j,j}$

  $\widehat{{\varphi }_i}$ = Fugacity coefficient of gases

T = temperature