Endothermic reaction is one in which energy is absorbed. In this process, energy is produced and independently maintained.
- Exothermic reaction is one in which energy is released. In this process, energy production only persists through the continuous supply of energy
from an external source.
In an endothermic reaction, the products of the reaction have higher energy than the reactants. To achieve this, energy is absorbed from the surroundings, usually in the form of heat. The reaction absorbs energy to proceed and maintain its energy level. Examples of endothermic reactions include the process of photosynthesis and the reaction between ammonium nitrate and water.
On the other hand, exothermic reactions release energy to the surroundings. The products of the reaction have lower energy than the reactants. The reaction releases energy as it progresses, and this energy production continues without the need for an external energy source. Common examples of exothermic reactions are combustion reactions, where fuels react with oxygen to release heat and light energy.
Both endothermic and exothermic reactions play significant roles in various chemical processes and biological systems. Understanding and controlling these reactions are essential in many areas, such as industrial processes, energy production, and understanding biochemical reactions in living organisms.