Question

what do you understand by exothermic and endothermic reaction give one example of each

Answer 1

Endothermic and exothermic reactions are chemical reactions that absorb and release heat, respectively. A good example of an endothermic reaction is photosynthesis. Combustion is an example of an exothermic reaction.

Answer 2

Exothermic reaction :It is a chemical reaction in which heat energy is evolved .ex:disolution of quick lime in water,CaO+H2O=Ca(OH)2+heat.

Endothermic reaction:A chemical reaction in which heat energy is absorbed is called ab endothermic reaction.ex:formation of nitrogen monoxide,N2+O2=(3000°c)2NO