Thermochemistry is a branch of chemistry that qualitatively and quantitatively describes the energy changes that occur during chemical reactions. Energy is the capacity to do work.

Thermochemistry is the study of the heat energy which is associated with chemical reactions and/or phase changes such as melting and boiling. A reaction may release or absorb energy, and a phase …

Thermochemistry attempts to understand and explain the transformations the energy in a reaction undergoes. “Thermo-” means “relating to heat,” and chemistry is the study of molecules and reactions.

Chapter 12 discusses the relationship between chemical reactions and the energy changes that accompany them.

Thermochemistry is a branch of chemical thermodynamics, the science that deals with the relationships between heat, work, and other forms of energy in the context of chemical and physical processes.

Thermochemistry is a specific subset of thermodynamics that concentrates exclusively on the heat changes (enthalpy) that occur during chemical reactions. In simple terms, all thermochemistry is …

Sliding a match head along a rough surface initiates a combustion reaction that produces energy in the form of heat and light. (credit: modification of work by Laszlo Ilyes) Chemical reactions, such as …