What happens to energy when bonds are formed
- why energy is released during bond formation
- why is energy released in bond formation
- why energy is released when bond is formed
- is energy absorbed during bond formation
Is forming bonds exothermic!
Energy changes in chemical reactionsEnergy changes
Breaking and making bonds
During a chemical reaction:
- bonds in the reactantA substance that reacts together with another substance to form products during a chemical reaction.
are broken
- new bonds are made in the productA substance formed in a chemical reaction.
Energy is absorbed to break bonds.
Energy in chemical bonds
Bond-breaking is an endothermic process.
Energy is released when new bonds form. Bond-making is an exothermic process.
Whether a reaction is endothermic or exothermic depends on the difference between the energy needed to break bonds and the energy released when new bonds form.
If more heat energy is released when making the bonds than was taken in when breaking bonds, the reaction is exothermic.
If more heat energy was taken in when breaking the bonds than was released when making the bonds, the reaction is endothermic.
Energy diagrams show the level of energy of the reactants and of the products.
The bigger the difference between the energy of the reactants and the energy of the products, the more
- why does bond formation release energy
- why does forming a bond release energy