Question

what is thermal decomposition?? in simple words

Answer 1

Decomposition reaction is a type of reaction in which energy is supplied as heat for decomposition.
Ex-CaCO3--->CaO+CO2

Answer 2

Decomposition reaction require energy either in the form of heat , light or electricity for breaking down the reactants.
Thermal decomposition is that when heat is used for breaking down the reactants this is called thermal decomposition reaction.

Ex,
Heat
CaCo3 --------------- CaO + Co2

(°) for breaking down the reactant calcium carbonate heat is used then calcium carbonate split to form calcium oxide and carbon dioxide.

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