"Chemical energy is the energy of chemical substances that is released when the substances undergo a chemical reaction and transform into other substances."
The energy stored in chemical bonds, which can be released or absorbed during a chemical reaction.
The Nature of Matter: Understanding matter as the basic building block of everything in the universe, including chemical substances.
Energy Forms: Different types of energy that exist, including thermal, electrical, mechanical, and chemical energy.
Potential Energy: Energy that is stored within a system and can be released as kinetic or other forms of energy.
Chemical Reactions: Understanding how atoms in a molecule interact with each other to create new substances.
Enthalpy: The amount of energy released or absorbed during a chemical reaction.
Bond Energies: The amount of energy required to break or form a chemical bond.
Stoichiometry: The relationship between the quantities of reactants and products in a chemical reaction.
Thermodynamics: The study of energy and its transformations in chemical reactions.
Energy Transfers: The movement of energy from one system to another, including energy transfer in chemical reactions.
Activation Energy: The minimum amount of energy required for a chemical reaction to occur.
Heat Capacity: The amount of heat energy required to raise the temperature of a substance.
Kinetics: The study of the rates of chemical reactions.
Calorimetry: The measurement of heat transfer in chemical reactions.
Gibbs Free Energy: The amount of energy available for a chemical reaction to occur.
Entropy: The measure of disorder or randomness in a system.
Electrochemistry: The study of the relationship between electrical and chemical reactions.
Photochemistry: The study of chemical reactions involving light.
Acid-Base Reactions: The interaction between acids and bases in chemical reactions.
Solubility: The ability of a substance to dissolve in a solvent.
Redox Reactions: The transfer of electrons between reactants in a chemical reaction.
Fossil Fuel Energy: The energy stored in hydrocarbons like coal, oil, and natural gas.
Biofuel Energy: The energy stored in organic matter like wood, plants, and crops.
Food Energy: The energy stored in carbohydrates, fats, and proteins in food items that can be used by living organisms.
Nuclear Energy: The energy stored in the nucleus of atoms through the process of nuclear fission or fusion.
Battery Energy: The energy stored in a chemical battery that converts chemical energy into electrical energy.
Biomass Energy: The energy stored in organic waste, agricultural residue, and municipal solid waste.
Combustion Energy: The energy released during the exothermic reaction in which a fuel reacts with oxygen (oxidation).
Endothermic Energy: The energy required to break the bonds in reactant molecules before a chemical reaction can occur.
Exothermic Energy: The energy released during the formation of new bonds as products are formed.
Activation Energy: The energy required to initiate or start a chemical reaction.
Gibbs Free Energy: The energy available for work during a chemical reaction at constant temperature and pressure.
"Some examples of storage media of chemical energy include batteries, food, and gasoline."
"...oxygen gas, which is of high chemical energy due to its relatively weak double bond and indispensable for chemical-energy release in gasoline combustion."
"Breaking and re-making chemical bonds involves energy, which may be either absorbed by or evolved from a chemical system."
"Therefore, relatively weakly bonded and unstable molecules store chemical energy."
"This change in energy can be estimated from the bond energies of the reactants and products."
"The internal energy change of a chemical process is equal to the heat exchanged if it is measured under conditions of constant volume and equal initial and final temperature."
"However, under conditions of constant pressure, as in reactions in vessels open to the atmosphere, the measured heat change is not always equal to the internal energy change, because pressure-volume work also releases or absorbs energy."
"A related term is the heat of combustion, which is the energy mostly of the weak double bonds of molecular oxygen released due to a combustion reaction and often applied in the study of fuels."
"Chemical potential energy is a form of potential energy related to the structural arrangement of atoms or molecules."
"Chemical energy of a chemical substance can be transformed to other forms of energy by a chemical reaction."
"Green plants transform solar energy to chemical energy (mostly of oxygen) through the process of photosynthesis."
"Electrical energy can be converted to chemical energy and vice versa through electrochemical reactions."
"The similar term chemical potential is used to indicate the potential of a substance to undergo a change of configuration."
"It is not a form of potential energy itself, but is more closely related to free energy."
"...in systems of large entropy such as chemical systems, the total amount of energy present (and conserved according to the first law of thermodynamics) of which this chemical potential energy is a part, is separated from the amount of that energy...which (appears to) drive the system forward spontaneously as the global entropy increases." (Note: This question does not have a direct quote in the paragraph, but the given quote explains the difference.)
"...the amount of that energy—thermodynamic free energy (from which chemical potential is derived)—which (appears to) drive the system forward spontaneously as the global entropy increases."
"...as the global entropy increases (in accordance with the second law)."
"...the energy mostly of the weak double bonds of molecular oxygen released due to a combustion reaction and often applied in the study of fuels."
"...the energy released is analogous to the heat of combustion (though assessed differently than for a hydrocarbon fuel—see food energy)."