University of Florida
Chemistry 2041 Lecture Notes: Ideal Gases
The ideal gas law is presented and explained. The derivation of other gas laws is performed. Gas behavior is explained in terms of gas laws. Excellent graphics.
Other
States of Matter and Properties of Gases: Terms
A very complete list of terms that are important to the study of gases. This resource is a web archive.
Georgia State University
Georgia State University: Hyper Physics: Temperature Standard Points
A page on the topic of temperature scales. This section of the page discusses the origins of the standard temperature and pressure values.