A very basic (prepared for the middle school math teachers) tutorial but still useful for professionals.
http://my.unidata.ucar.edu/content/staff/blynds/tmp.html - New window - Cached - Archive -
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.
http://hyperphysics.phy-astr.gsu.edu/hbase/heacon.html#heacon - New window - Cached - Archive -
from Engineers Edge. A definitions, short explanations and connection of basic thermodynamics terms.
http://www.engineersedge.com/thermodynamics/table_contents.htm - New window - Cached - Archive -
The basis for thermodynamics. An introduction to the conservation of energy, states of matter and changes of state.
http://web.mst.edu/~gbert/basic/thermo.html - New window - Cached - Archive -
Applet showing the physics processes of a Carnot heat engine by Fu-Kwun Hwang of the National Taïwan Normal University.
http://www.phy.ntnu.edu.tw/java/carnot/carnot.html - New window - Cached - Archive -
Calculation of metal phase diagrams using the CALPHAD method. Also offers consulting services.
http://www.calphad.com/ - New window - Cached - Archive -
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.
http://www.thermohistory.com/ - New window - Cached - Archive -
TEST is a visual environment to solve thermodynamics problems, pursue what-if scenarios and perform numerical experiments.
http://energy.sdsu.edu/testcenter/ - New window - Cached - Archive -