Thermochemistry is the study of the energy changes that take place during chemical reactions. These energy changes may assume various forms. When air and natural gas are ignited, enough heat to supply a Bunsen burner is produced, but when glucose is...

In thermodynamics and physical chemistry, thermochemistry is the study of the heat evolved or absorbed in chemical reactions. Thermochemistry, generally, is concerned with the heat exchange accompanying transformations, such as mixing, phase...