An example of chemical energy is the energy in an electrochemical cell. Chemical energy is the energy that results from a chemical reaction between atoms and molecules. Chemical energy may come in different forms, such as electrochemical energy and chemiluminescence.
Energy, by definition, is the ability to do work. Other examples of chemical energy in use include plants using photosynthesis to transform solar energy to chemical energy. Electrochemical reactants convert electrical energy to chemical energy. When a chemical reaction occurs between atoms and molecules, the difference in energy between the products and reactants is equal to the energy that can released or absorbed between a set of chemical substances.