At the University of Virginia’s Department of Chemistry, we are proud to offer our students the opportunity to do research for chemistry credits while also doing research in another department. You are welcome to do research in the Department of Chemistry, in related departments such as Biology, or in the medical school. For example, you can.
AP Chemistry Resource Center. AP Chemistry. Search this site. Navigation. Welcome to AP Chemistry. Chapter 1: Chemical Foundations. Entropy Changes In Chemical Reactions. Entropy is a driving force of a chemical reaction. Chemical reactions want an increase in entropy. For example: H2O(s) to H2O(g). A phase change from a solid to a gas results in an increase in entropy. The molecules of a.