Question

What is meant by endothermic and exothermic reactions? Give suitable example for each. ​

Answer 1

Answer:

Reaction in which heat energy is liberated by the reactants is called exothermic reaction. eg: Carbon + Oxygen gives Carbon Dioxide + Q. reaction in which heat energy is absorbed by the reactants is called endothermic reaction. eg: Nitrogen + Oxygen gives 2 nitrous oxide (2NO) - Q.

Answer 2

Exothermic Reaction

These are the reactions in which heat is given out to perform a chemical reaction.

Some Examples

- Respiration

- Neutralization reaction

Endothermic Reaction

These are the reactions which require input of heat energy.

Some Examples

- Photosynthesis

- Melting of Ice