Lecture13_Compressibility_chart_and_factors,_ideal_gas_models-handout[1]

Lecture13_Compressibility_chart_and_factors,_ideal_gas_models-handout[1]

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Unformatted text preview: 1 Professor: Euiwon Bae Lecture Hours : MWF 1:30-2:20 in ME1130 Office Hours : MWF 2:30-3:30 in ME1091 Email : [email protected] Phone : 765-494-6849 Course website : http://engineering.purdue.edu/ME200 ME200 : Thermodynamics I Lecture 13 : Compressibility chart and ideal gas models 2 Outline Compressibility chart Ideal gas models Examples 3 Compressibility chart - Universal gas constant : when ratio of p ? /T is computed for cylinder with a gas - Common for all T and substances - Individual gas constant will exist with R rather than lim →0 ? = ¡ ¡ = 8.134 kJ kmol¢K = 1.986 Btu LbMOL¢°R = 1545 ¢ LbMOL¢°R ¢ = ¡ /? 4 Compressibility Factor Z - Dimensionless parameter Z is defined - With = ??¡ where M is the molecular weight - Therefore : as pressure approaches zero, Z is close to 1 ¢ = ? ? ¡ £¤¥¦§ = ¡ ??...
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Lecture13_Compressibility_chart_and_factors,_ideal_gas_models-handout[1]

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