Thermochemistry. Chapter 6. Thermochemistry. Thermodynamics is the science of the relationship between heat and other forms of energy. Thermochemistry is the study of the quantity of heat absorbed or evolved by chemical reactions. Energy. There are three broad concepts of energy:.
We will look at each of these in detail.
The First Law of Thermodynamics:
You can’t get something
“out of” a system
Dq < 0
“into” a system
Dq > 0