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Class 12 Tuition > Learn Chemistry > What do you understand by exothermic reaction and endothermic...
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What do you understand by exothermic reaction and endothermic reaction? Give one example of each type.

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EXOTHERMIC REACTION: The chemical reaction which releases heat during the reaction to the surrounding are called exothermic reaction. "Exo" means "out" and "thermic" means "heat". The exothermic reaction releases heat to the surroundings so that the surrounding becomes hotter, by which we can identify...
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EXOTHERMIC REACTION: The chemical reaction which releases heat during the reaction to the surrounding are called exothermic reaction. "Exo" means "out" and "thermic" means "heat". The exothermic reaction releases heat to the surroundings so that the surrounding becomes hotter, by which we can identify an exothermic reaction. 

reactants → products + energy

Examples: Any combustion reactions like lighting a candle, Combustion of fuels, mixing water and acids

ENDOTHERMIC REACTION: The chemical reaction which absorbs heat during the reaction from the surrounding are called endothermic reaction. "Endo" means "within" and "Thermic" means heat. The endothermic reaction absorbs heat from the surrounding so that the surrounding becomes cold, by which we can identify an endothermic reaction.

reactants - energy → products

Examples: Melting of ice cubes, Evaporation of water

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