Engineering thermodynamics/Compressibility factor

Wikipedia resources

 *  Compressibility factor  (explains the figure to the right)
 * Theorem of corresponding states
 * Van der Waals equation
 * Ideal gas law (for beginners)
 * Kinetic theory (advanced discussion of the ideal gas law)

Wikiversity resources

 * Gases and gas laws (underdeveloped)

Matlab resources

 * Compressibility Factor Calculator by Chad Greene (28 Mar 2012 --Updated 06 Nov 2012)
 * Calculates the compressibility factor of a gas using the Van der Waals equation of state.
 * alternative link from mathworks
 * Z factor by hossein yousefi (16 Dec 2010)