In thermodynamics, Ronald D. Kriz (1948-) is an American engineer noted for his in depth work and online articles on graphical thermodynamics methods of Willard Gibbs, James Maxwell (Maxwell’s thermodynamic surface), James Thomson (Thomson’s thermodynamic surface), and the recent computer implementation of the latter in the works of Daniel Charles Coy. [1]
Overview
In 2007, Kriz, in his “Thermodynamic Case Study: Gibbs’ Thermodynamic Graphical Method”, began detailing some of the graphical thermodynamics representations of Willard Gibbs; the following is an example of Kriz's illustrative work, which shows Maxwell's graphical model based on Gibbs' original graphical method; information highlighted in light blue shows a connection to the equation of state: [2]

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See also
● Vladimir Arnold
● Frank Wienhold
● William Cropper
References
1. (a) Kriz, Ronald. (2007). “Thermodynamic Case Study: Gibbs’ Thermodynamic Graphical Method”, sv.VT.edu.
(b) Coy, Daniel Charles. (1993). "Visualizing thermodynamic stability and phase-equilibrium through computer graphics", Ph.D. dissertation, Iowa State University.
2. Kriz, Ronald D. (2007). “Thermodynamic Case Study: Gibbs’ Thermodynamic Graphical Method: Envisioning Total Derivatives of a Scalar Function with Two Independent Variables as Raised Surfaces and Tangent Planes.” Sv.Vt.edu.
External links
● Ronald D. Kriz – Virginia Tech.