PHYSICS
JAMB 2014 - Question 13
Physics 2014 JAMB Past Questions - Question 13: The energy in the nucleus of atoms produce heat which can be used to generate
Correct Answer
B
Explanation
In a nuclear reactor, energy produced at the nucleus of atom which is in form of heat is used to generate electricityThe energy in the nucleus of atoms is harnessed through a process known as nuclear energy or nuclear power. This energy can indeed be used to generate heat, which, in turn, can be used for various practical applications, including electricity generation. The primary methods for harnessing nuclear energy are through nuclear fission and, potentially in the future, nuclear fusion.
1. Nuclear Fission: Nuclear power plants primarily use nuclear fission, which involves splitting the nucleus of an atom into two or more smaller nuclei, along with the release of a significant amount of energy. Uranium-235 (U-235) and plutonium-239 (Pu-239) are commonly used as fuel in fission reactors. When the nucleus of these atoms is split, it releases a tremendous amount of heat energy. This heat is used to produce steam from water, which drives turbines connected to generators, producing electricity.
2. Nuclear Fusion: Nuclear fusion is a process that occurs in stars, including our sun, where light atomic nuclei combine to form heavier ones, releasing a vast amount of energy. Scientists have been working on developing controlled nuclear fusion as a potential clean and abundant energy source, but it has proven to be technically challenging. If successful, nuclear fusion could provide a nearly limitless source of heat and electricity.
In both cases, the heat generated from nuclear reactions is used to produce steam, which drives turbines and generates electricity. Nuclear power is considered a reliable and low-carbon source of energy, but it also raises concerns related to nuclear safety, waste disposal, and the potential for nuclear weapons proliferation. Consequently, the use of nuclear energy is a topic of ongoing debate and research in the field of energy production and environmental policy.