Discussion forum Fall 2022

Exothermic

Exothermic

by maisha mahian -
Number of replies: 2

Is breaking a bond exothermic?

In reply to maisha mahian

Re: Exothermic

by Md. Foyez Ahmed -
No,,
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.
In reply to maisha mahian

Re: Exothermic

by Tahsinul Hasan -
no.
Bond breaking is an endothermic process, because it requires energy. Bond forming is an exothermic process, because it releases energy. In reaction profile diagram, the energy change in a reaction, is the difference between the reactants and products.