- About Temperature - A very basic (prepared for the middle school math teachers) tutorial but still useful for professionals.
- All Thermodynamics - from HyperPhysics portal. This is rather a comprehensive online physics handbook containing "Thermodynamics" chapter. Site has a handle navigation, good illustrations, and very detail content.
- Applied Thermodynamics - Definition and short explanations of terms, units and basic principles.
- Basic Terms and Theory - from Engineers Edge. A definitions, short explanations and connection of basic thermodynamics terms.
- Carnot cycle - Applet showing the physics processes of a Carnot heat engine by Fu-Kwun Hwang of the National Taïwan Normal University.
- A Concise History of Thermodynamics - An overview of the history/evolution of thermodynamics. This is an excerpt from a biography of J. Willard Gibbs. The overview is available from the site in MS Word or pdf/Acrobat format.
- Fundamentals of Thermodynamics - Lecture notes and problems from University of Pittsburg.
- Ideal Gas Law - Applet illustrating the ideal gas law : action of a piston in a pressure chamber filled with ideal gas.
- Internal Combustion Engines Web Site - Thermodynamics and heat transfer in Internal combustion engine. Applets are used to perform simple calculations. Developed at Colorado State University.
- Properties of Heat and Matter - Online book on Thermodynamics at UC Berkeley.
- The Expert System For Thermodynamics - TEST is a visual environment to solve thermodynamics problems, pursue what-if scenarios and perform numerical experiments.
- The Second Law of Thermodynamics - A qualitative introduction to the second law and entropy written for beginners in chemistry but useful for physics students too. Explains relationship with Murphy's Law.
- Thermo Fluids Engineering - web page of the division of the Eindhoven University of Technology which study processes where fluid flows and heat transfer play a prominent role.
- Thermodynamic Toys - Contains directions for making toys with thermodynamics background.
- Thermodynamics and Its Applications - Companion site to the textbook by J. W. Tester and M. Modell, includes answers to selected problems and current errata.
- Thermodynamics and Statistical Physics - Collection of educational sites explaining all aspects of thermodynamics.
- Thermodynamics and Thermal Physics - About.com's index to thermodynamics information.
- Thermodynamics from Prof. Ian Waitz - Basic thermodynamics course of 12 lectures, contains else the self-control questions with statistics of answers.
- Thermodynamics Research Laboratory - Classical, Quantum, Nanoscale and Statistical Thermodynamics and Mechanics data and property calculation sites.