Texas Education Agency
Texas Gateway: The First Law of Thermodynamics and Some Simple Processes
By the end of this section, you will be able to describe the processes of a simple heat engine; explain the differences among the simple thermodynamic processes: isobaric, isochoric, isothermal, and adiabatic; and calculate total work...
University of Sydney (Australia)
Entropy and the Second Law of Thermodynamics [Pdf]
A set of printable pdf pages from the University of Sydney's "Thermal Physics Module" site. Entropy is defined and explained conceptually. The mathematical treatment of entropy is introduced. The second law of thermodynamics and its...