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+// Y.V.C.Rao ,1997.Chemical Engineering Thermodynamics.Universities Press,Hyderabad,India.

+

+//Chapter-3,Example 11,Page 72

+//Title:Volume using two paramter and three parameter compressibility factor correlation

+//================================================================================================================

+clear 

+clc

+

+//INPUT

+T=409.41;//temperature of n-octane in degree celsius

+P=4.98;//pressure in bar

+Tc=569.4;//critical temperature of n-octane in K

+Pc=24.97;//critical pressure of n-octane in bar

+w=0.398;//acentric factor (no unit)

+R=8.314;//universal gas constant in (Pa m^3)/(mol K)

+

+//CALCULATION

+Tr=(T+273.15)/Tc;//calculation of reduced temperature (no unit)

+Pr=P/Pc;//calculation of reduced pressure (no unit)

+z0=0.96;//value of compressibilty factor at tr and pr obtained from Fig.3.11 

+V1=(z0*R*(T+273.15))/(P*10^5);//calculation of volume in m^3/mol using the two parameter compressibilty factor correlation

+z1=0.01;//value of compressibilty factor at tr and pr obtained from Fig.3.12

+z=z0+(w*z1);//calculation of compressibility factor using Eq.3.64

+V2=(z*R*(T+273.15))/(P*10^5);//calculation of volume in m^3/mol using the three parameter compressibility factor correlation

+

+//OUTPUT

+mprintf('\n The volume occupied by n-octane obtained by the two parameter compressibilty factor correlation= %f m^3/mol\n',V1);

+mprintf('\n The volume occupied by n-octane obtained by the three parameter compressibility factor correlation= %f m^3/mol\n',V2);

+

+

+//===============================================END OF PROGRAM===================================================