English. Noun. chemical energy (countable and uncountable, plural chemical energies). (chemistry) The net potential energy liberated or absorbed during the course of a chemical reaction ...
Chemical energy. explosion near a fence. Some chemical reactions release energy. For example, when an explosive goes off, chemical energy stored in it is transferred to the surroundings as thermal energy, sound energy and kinetic energy.
Feb 27, 2011 ... The article defines what chemical energy is and the sources of chemical energy that may include coal, biomass, oil, food, wood, etc. Chemical energy sources can be classified according to their natural state (solid, liquid,gas) or whether they are naturally or artificially prepared. The article also describes ...
May 5, 2013 ... All chemical changes are accompanied by the absorption or release of heat. The intimate connection between matter and energy has been a source of wonder and speculation from the most primitive times; it is no accident that fire was considered one of the four basic elements (along with earth, air, and ...
There are many different kinds of energy but the single most widely used in society as well as in nature is chemical energy. Chemical energy allows energy to be stored for later use and it is also easy to access. Without chemical energy, many of the luxuries and even basic necessities that people have grown accustomed.
The bicycle got its potential energy (energy due to position related to gravity) by the rider using metabolic energy to move the pedals. The pedals used mechanical energy to move the chain, which moved the wheels. The rider's metabolic energy came from chemical energy that was stored in the molecules of the food she ...
May 1, 2012 ... Your watch, laptop, and laser-pointer are all powered by the same thing: chemistry… By Mary Bates. There are a lot of different kinds of batteries, but they all function based on the same underlying concept. “A battery is a device that is able to store electrical energy in the form of chemical energy, and ...
Jan 5, 2012 ... Chemical potential energy is that which is stored within the bonds of atoms and molecules of a substance. The bonds have stored chemical potential energy which is released when they are broken and the substance undergoes a chemical reaction. In such processes, conservation of mass is maintained.
Accounts for about 2% of the. GHG emissions. • Underwent a strong change away from coal after unification 20 years ago. • Grew substantially in the last decade despite an increase in energy efficiency of the. German economy by about. 2% p.a.. • Produces about 3% of the global electricity. 0. 20. 40. 60. 80. 100. 120. 140.