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What does one mean by exothermic and endothermic reactions? Giveexamples.​

Answer»

ENDOTHERMIC REACTION :-

The reaction in which heat is absorbed is called as endothermic reaction.

◾Endothermic reaction is opposite to exothermic reaction.

◾In this PROCESS, there is the increase in the enthalpy H.

Example → photosynthesis : It is an example of endothermic reaction because it absorbs heat energy from the sunlight.

★ Exothermic reaction :-

The reaction in which heat is released is called as exothermic reaction.

◾Exothermic reaction is opposite to endothermic reaction.

◾In this process, heat is released and the replacement of weak bonds with stronger ones takes place.

Example → the BURNING of the NATURAL gas.



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