gas mixture stored at 5500 kPa and 320 K contains 80% nitrogen and 20% ethane.  Calculate and compare the molar volume of the mixture using  a) The ideal gas equation, b) the mean compressibility factor based on Amagat’s and  Dalton’s law, c) The Kay’s method.  Given that:  For nitrogen critical pressure (PC) = 3394 kPa and critical temperature (TC)=126.1 K;  For ethane PC =4880 kPa and TC =305.4 K respectively.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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A gas mixture stored at 5500 kPa and 320 K contains 80% nitrogen and 20% ethane. 
Calculate and compare the molar volume of the mixture using 
a) The ideal gas equation, b) the mean compressibility factor based on Amagat’s and 
Dalton’s law, c) The Kay’s method. 
Given that: 
For nitrogen critical pressure (PC) = 3394 kPa and critical temperature (TC)=126.1 K; 
For ethane PC =4880 kPa and TC =305.4 K respectively.

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