The pages in this section of the
Chem1 Virtual Textbook offer a thorough introduction to thermodynamics at the first-year university level. The Second Law and its applications to chemical equilibrium are covered in a separate lesson set.
All chemical changes are accompanied by the absorption or release of heat. The intimate connection between matter and energy has been a source of wonder and speculation from the most primitive times; it is no accident that fire was considered one of the four basic elements (along with earth, air, and water) as early as the fifth century BCE.
In this set of lessons, we will review some of the fundamental concepts of energy and heat and the relation between them. We will begin the study of thermodynamics, which treats the energetic aspects of change in general, and we will finally apply this specifically to chemical change. Our purpose will be to provide you with the tools to predict the energy changes associated with chemical processes. This will build the groundwork for a more ambitious goal: to predict the direction and extent of change itself.
More on-line resources
Energy, Enthalpy and the First Law of Thermodynamics (Purdue Univ.)
videos - The following university-level lectures cover much of the material relevant to energetics and the first law, but parts extend into more advanced topics of thermodynamics.
MIT 5.60a; State of a system, 0th law, equation of state (49 min) (See the
course home page)
YaleCourses Physics 200: