Exothermic Reaction vs Endothermic Reaction

Various differences between Endothermic and Exothermic Reactions are added in the table below as,

Differences between Exothermic Reaction and Endothermic Reaction
Exothermic Reaction	Endothermic Reaction
Exothermic Reaction is a chemical reaction that releases energy in the form of heat/light or sound to its surroundings. During this chemical reaction, the system loses heat to the surroundings.	Endothermic Reaction is a chemical reaction that absorb energy from its surroundings. During this chemical reaction, the system gain heat from the surroundings. As a result temperature of reaction increase.
The change in enthalpy ( ΔH) will be negative.	The change in enthalpy ( ΔH) will be Positive.
Examples: Combustion, Respiration, Formation of Snow.	Examples: Melting ice cubes, Photosynthesis, Evaporation of water.

Endothermic and Exothermic Reaction Graph

The endothermic and exothermic reaction graph is added below,

Formula for Heat in Exothermic Reactions

The total energy of the products is less than the total energy brought to the system by the reactants in an exothermic reaction and the formula for the same is,

ΔH^⚬ = Total Bond Energy of Reactants – Total Bond Energy of Products

How Can We Measure Energy Release in Exothermic Reaction?

As it is not technically feasible to measure how much energy is released in a chemical reaction, the change in energy is measured instead. It is measure by calculated difference between the energy of the products reacting and the energy released after the reaction.

However a device called calorimeter is used to measure the energy produced in an exothermic reaction. A widely used calorimeter, known as the bomb calorimeter, is a relatively simple tool used to measure released energy.