Question

Differentiate between exothermic and endothermic reactions by giving one example of each.

Answer 1

Exothermic reaction	Endothermic reaction
i. Reaction in which heat is released along with the formation of products are called exothermic reactions	Reaction in which energy is absorbed is known as endothermic reaction.
ii. For Example : Quick lime reacts vigorously with water releasing a large amount of heat: CaO + H2O → Ca(OH)2 + heat	For example: When silver bromide is kept in sunlight, it forms silver and bromine: 2AgBr + sunlight →2Ag + Br2
iii. Products have more energy than reactants.	Products have more energy than reactants.
Exothermic	Endothermic