Year 12 Recap - Making and Breaking Bonds

It takes energy to break chemical bonds. Therefore, this process is endothermic.

Conversely, when bonds form, energy is released. Bond formation is exothermic.

We can apply this to our understanding of melting (and boiling) points. We can also use this to understand what is happening at a particle level in an endothermic or exothermic chemical reaction.

Please note - the sciPad page are from the Year 12 book, not the Year 13 book