Chemical energy can be converted into other forms, like thermal and mechanical energy. Living beings need chemical energy to survive. Chemical energy sources are coal, petroleum, natural gas, biomass, and food.
Examples
How to Calculate Chemical Energy
C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O (g) + energy
Biofuels are alternatives to fossil fuels and use energy from living or recently living organisms. They store usable chemical energy and are renewable resources.Plants combine energy from the sun with carbon dioxide and water to produce glucose and oxygen, a process known as photosynthesis. When glucose is formed, new bonds are created, and chemical energy is stored. The chloroplast is the organelle that converts sunlight or radiant energy into chemical energy.During respiration, the chemical energy stored in glucose is transferred to adenosine triphosphate (ATP) in the cells. Thus, we get the energy to work and run.
Chemical Energy = Eproducts – Ereactants
