Question

MAJORITY OF DECOMPOSITION REACTIONS ARE ENDOTHERMIC IN NATURE. EXPLAIN.

Answer 1

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$\bold{\longmapsto}$Decomposition reactions are usually endothermic because they involve breaking of bonds. Breaking bonds requires an input of energy, while forming bonds releases energy.

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Answer 2

Answer:

Since a decomposition reaction involves breaking bonds of a large molecule to form two or more smaller molecules, more bonds are broken than are formed, which means that the reaction will require a net input of energy making it endothermic.

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 reactions.

Explanation:

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