Question

What do you mean by exothermic reaction &endothermic reaction explain with an example

Answer 1

.Exothermic reactions: Those reactions in which energy is released in the form of heat are called exothermic reactions.

Examples –

(1) All combustion reactions e.g.

CH4 + 2O2 —> CO2 + 2H2O + Heat

(2) Thermite reactions e.g.

2Al + Fe2O3 —> 2Fe + Al2O3 + Heat

Combinations are generally exothermic in nature. The decomposition of organic matters into compost is an example of exothermic reaction.

Endothermic reactions: Those reactions in which energy is absorbed are called endothermic reactions. Examples –

 

CaCo3 ----> Cao + Co2

I HOPE IT HELP U


MARK ME BRAINLIEST

Answer 2

Exothermic reaction - In these process the heat is released during a reaction is called as exothermic reaction .

eg- CH4 +2O2 = CO2 + 2H2O

Endothermic reaction - in these process heat is absorbed during a reaction is called as endothermic reaction .

eg- melting of ice