Question

write a short note on exothermic and endothermic reaction .​

Answer 1

Explanation:

Exothermic reaction - The reaction in which heat is evolved . such reactions are called exothermic reaction.

Ex - burning of carbon dioxide.

and,

Endothermic reaction- the reaction in which heat is absorbed . such reactions are called endothermic reaction.

Ex - heating calcium hydroxide.

Answer 2

Exothermic Reaction

• An exothermic reaction is a chemical reaction that releases energy through light or heat.

Endothermic Reaction

• An endothermic reaction is any process which requires or absorbs energy from it's surroundings, usually in the form of heat.

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