The reaction is usually endothermic as heat is required to break chemical bonds in the compound undergoing decomposition.
If decomposition is sufficiently exothermic, a positive feedback loop is created producing thermal runaway and possibly an explosion or other chemical reaction.
[2] main definition: Thermal decomposition is the breakdown of a compound into two or more different substances using heat, and it is an endothermic reaction When metals are near the bottom of the reactivity series, their compounds generally decompose easily at high temperatures.
De Paoli and her collogues conducted a study testing thermal degradation on certain components found in fingerprints.
[4] These components are necessary for further testing, so in the forensics discipline, decomposition of fingerprints is significant.