Question

what is thermal decompsition?​

Answer 1

Thermal decomposition, or thermolysis, is a chemical decomposition caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. The reaction is usually endothermic as heat is required to break chemical bonds in the compound undergoing decomposition

Answer 2

Type of decompisition reaction in which energy is supplied in the form of heat.

this is thermal decomposition

eg : burning of ferrius sulphate crystals

hope it helps