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...
NASA
Nasa: Gas Properties Definitions
Use this site to learn about basic gas properties including motion, viscosity, and compressibility. Includes links to activities for all ages.