Exploring Energy from Fission Reactions

In summary, the conversation discusses the source of energy in a fission reaction and the assumptions made about it. The main force giving the fragments their kinetic energy is the electrical repulsion between the protons. However, the strong nuclear force also plays a role in the process. Without the repulsive force between protons, nuclear fission would not occur.
  • #1
Infrasound
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As a person with a very basic understanding of nuclear physics, I am curious about the source of energy in a fission reaction.

In the past, I have made the following assumption:

-That the bulk of the energy in a fission reaction is released the form of kinetic energy of the two fragments (barium and kryption nuclei).

I have also made the following assumption (with much less confidence):

-That this kinetic energy results primarily from the electrical repulsion between the 92 protons acting on each other, which causes the two fragments to fly away from each other with great force.

I am worried that this assumption may not be correct in that the electrical repulsion between the protons might not be the main force giving the fragmets most of their kinetic energy.

Any help with this would be greatly appreciated. Thanks in advance for any insight.
 
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  • #2
Your description is basically right. The strong nuclear force is attractive, so there is a nuclear potential energy involved as well, and it subtracts from the electrical energy being released.
 
  • #3
Yep, the repulsive force between all those protons is the entire basis of fission! Once the positive force begins to overcome the strong nuclear force, there is a chance that the nucleus will split and eject parts of itself. If Protons didn't repel each other things would be strange indeed.
 

1. What is fission and how does it produce energy?

Fission is a nuclear reaction in which the nucleus of an atom splits into smaller fragments, releasing a large amount of energy. This reaction is triggered by bombarding the nucleus with neutrons, causing it to become unstable and split into two or more smaller nuclei. The energy released in this process is in the form of heat, which can then be converted into electricity.

2. What are the advantages of using fission reactions to produce energy?

One advantage of fission reactions is that they produce a large amount of energy from a small amount of fuel. Additionally, the process does not emit greenhouse gases and is a reliable source of energy. Fission reactions also do not require large amounts of water or land, making them a viable option for energy production in areas with limited resources.

3. What are the risks associated with fission reactions?

The main risk associated with fission reactions is the potential for nuclear accidents, which can have severe consequences for both human health and the environment. Additionally, the disposal of nuclear waste from fission reactions is a major concern, as it remains radioactive for thousands of years and must be stored carefully to prevent contamination.

4. How do scientists ensure the safety of nuclear power plants?

Scientists and engineers follow strict safety protocols and regulations to ensure the safe operation of nuclear power plants. These include regular maintenance and inspections, as well as implementing multiple layers of safety systems to prevent accidents. Additionally, new technologies and designs are constantly being developed to improve the safety of nuclear power plants.

5. Can fission reactions be used to power all types of energy needs?

Fission reactions are primarily used to generate electricity, but they can also be used for other energy needs. For example, nuclear reactors can be used to power submarines and spacecraft. However, fission reactions are not suitable for transportation or small-scale energy needs, as they require large and complex infrastructure to operate.

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