Question

.Differentiate between the exothermic and endothermic reaction.Write one
example for each

Answer 1

Exothermic reactions are those in which heat in released after a chemical reaction ...

Ex - CaO + H2O --- Ca (OH)2 + Heat ..

Endothermic reactions are those in which energy is invloed in the form of heat , light and electricity.

Ex --- H2O --------- H2 + O2 ( By electricity )..

Answer 2

endothermic reactions : those chemical reaction in which heat is absorbed is called as endothermic reaction eg : KOH + NAOH –––―––– KOHaq + NAOHaq - HEAT


exothermic reaction : those chemical reaction in which heat is evolved is called as exothermic reaction