L ect ur e # 10 Pr oper t ies
9/17/08
I deal Gas M odel
An ideal gas equation of state is an appr oximation to the actual equation of state (w ith compr essibility char t). F or an ideal gas model, pv = RT T his implies Z = 1, w her e Z = compr essibility
Lecture # 13
Problems on Properties 9/24/08
Fig03_02
Fig03_02
Fig03_03
Fig03_03
Properties of Liquid Vapor Mixture
In the vapor dome, the pressure and temperature stay constant during the evaporation. The quantity that changes is the quality of the mixtur
Lecture 12
Properties 9/22/08
Problem 3.116
A piston-cylinder assembly contains air at a pressure 2 3 of 30 lbf/in . and a volume of 0.75 ft . The air is heated at constant pressure until its volume is doubled. Assuming the ideal gas behavior with constan
Lecture # 11
Class Problems 9/19/08
Problem 3.92
3
Determine the volume in m occupied by 40 kg of
2
nitrogen (N ) at 17 MPa, 180 K. Let us first compute the compressibility factor. For nitrogen, pcrit = 33.9 bars, Tcrit = 126K. (Table A1) Hence p/pcrit =