Question

Which type of reaction releases the most energy?

Answer 1

Solution :

Exothermic reactions

• The chemical reaction releases the most energy of all. The chemical reactions that release energy in the form of heat or lights are called an exothermic reactions.
• All combustion reactions are exothermic reactions.

Example

• The atomic bombs made from Uranium-235 (${235}_{\mathrm{U}}$) and Plutonium-239(${239}_{\mathrm{pu}}$) can generate huge amounts of heat energy when exploded as part of the nuclear fission process.
• The temperatures of a nuclear explosion reach those in the sun's interior, about 100,000,000° Celsius, producing a tremendous fireball that can vaporize everything including soil and water.