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Nuclear Fission

Nuclear fission is the phenomenon in which an atomic nucleus splits into lighter nuclei. This reaction can be spontaneous in some isotopes, but usually is the result of heavy nuclei absorbing a neutron. Because fission often results in the emission of multiple neutrons, this reaction can be self-sustaining, making such things like nuclear reactors and nuclear weapons possible.

488 Questions

Why will nuclear fission probably never be used for powering automobiles?

Because of the need for shielding, a nuclear reactor has to be very heavy even if only a moderate power producer, so one could only be carried in a very large vehicle. Then there is the mechanical drive, if done by steam (and I don't know how else) this would mean further equipment. But apart from these problems, it would never be acceptable to have mobile nuclear reactors going up and down the freeways, because of the risk of accident and release of radioactivity.

What is an uncontrolled nuclear fission?

There are both controlled and uncontrolled fission reactions. The reactors in nuclear power plants and submarines make use of a controlled nuclear reaction. Nuclear weapons make use of an uncontrolled reaction.

What is the difference between a nebula and nuclear fusion?

A nebula is a massive cloud of gas and other materials that is revolving around one focal point which is the most massive point and therefore has the strongest gravity which makes the rest of the cloud revolve around it. This eventually creates a star. Nuclear fusion on the other hand is simply the combination of two particles such as when hydrogen atoms collide to create helium (this is the most common kind of fusion in stars). Basically fusion takes two and makes one (basically, it can emit more particles too) while a nebula is a giant space cloud, the birth of stars.

What is a dial-a-yield nuclear bomb - fission or fusion?

"Dial-a-yield," or Variable Yield, is a method of adjusting the yield of a nuclear weapon through various means. While most modern high-energy weapons are thermonuclear, both fission and thermonuclear weapons can have their yield adjusted. In a boosted fission weapon (which can also be the primary to a staged radiation implosion weapon), the yield can be adjusted by changing the amount of deuterium/tritium gas that is injected into the plutonium pit, or by the timing of the external neutron initiator, or both. In a staged weapon, causing the secondary to not ignite by adjusting the yield of the primary (see above), or blocking the radiation channel in some way, can also change the yield of the weapon.

Which best contrast nuclear fission and nuclear fusion?

Nuclear fission involves splitting a heavy nucleus into lighter elements, releasing energy. Nuclear fusion involves combining light nuclei to form heavier ones, also releasing energy. Fission is currently used in nuclear power plants, while fusion is still being developed as a potential future energy source.

Is uranium the only element that can be used in nuclear fission?

No, uranium is not the only element that can be used in nuclear fission. Other elements like plutonium and thorium can also undergo nuclear fission reactions. Uranium-235 is the most commonly used isotope, but plutonium-239 and thorium-232 can also sustain fission reactions in certain nuclear reactors.

Does nuclear power produce smoke?

Nothing unusual.

The only thing vented into the air from a nuclear power plant is steam.

Water is used in the cooling process but is only applied to the outside of containers so it never becomes mixed with any dangerous chemicals. The clean water vapor is vented out into the air.

Any physical or chemical waste produced by a nuclear plant is completely enclosed and disposed of without contact with the outside air so there is no smell produced.

What is nuclear fission and how does mass defect involved?

Nuclear fission is the process of splitting an atomic nucleus into two or more smaller nuclei. During this process, some mass is converted into energy according to Einstein's famous equation E=mc^2, where c is the speed of light. The mass defect is the difference in mass between the original nucleus and the smaller nuclei produced after fission, and this missing mass is converted into energy.

What is the reason for high frequency in dc motor?

High frequency in a DC motor can be caused by factors such as mechanical resonance, electrical noise, or incorrect control signal frequency. These can lead to instability and performance issues in the motor operation. It is important to identify and address the root cause to ensure smooth and efficient motor performance.

How does nuclear fission end?

Nuclear fission ends when all available fuel is depleted in the reactor, leading to a shutdown of the chain reaction. This can be controlled using control rods to absorb neutrons and regulate the reaction. Once the fuel is used up, the reactor is then decommissioned and the spent fuel is safely managed and stored.

Why does a coolant have to travel through sealed pipes?

A few of the reasons:

1. So that the coolant does not leak out of the system.

2. So that the coolant can be made to circulate through the pipes (pressure is required).

3. So that Pressure can build up in the cooling system. This allows the coolant to reach a higher temperature before boiling. Once at its boiling point, the temperature will not rise, and additional cooling is inhibited.

How does nuclear fission spin a turbine?

Nuclear fission generates heat which is used to produce steam. The high-pressure steam spins a turbine by expanding through its blades. The turbine is connected to a generator, which converts the kinetic energy from the spinning turbine into electricity.

What is fragmentation or multiple fission?

Fragmentation is a form of asexual reproduction where an organism breaks into several pieces, each of which can grow into a new individual. Multiple fission, on the other hand, is a form of reproduction where a single organism divides into multiple daughter cells simultaneously. Both processes result in the production of multiple offspring without the need for fertilization.

Does nuclear fission have small amounts of mass?

Yes, nuclear fission involves the splitting of a heavy nucleus into lighter nuclei, releasing energy in the process. This conversion of mass into energy, as described by Einstein’s famous equation E=mc^2, results in a small loss of mass during such reactions.

What kind of nuclear reactive occurs in the sun fusion or fission?

The nuclear reaction that occurs in the sun is fusion. This process involves the fusing of hydrogen atoms to form helium, releasing a large amount of energy in the form of light and heat. Fusion is the main source of energy for the sun and other stars.

What are the three most dangerous fission products?

The three most dangerous fission products are cesium-137, strontium-90, and iodine-131. These isotopes are highly radioactive and can cause serious health effects, such as cancer and radiation sickness, if not properly contained.

Can produce fission?

Fission is a nuclear reaction where an atom's nucleus splits into two or more smaller nuclei, releasing a large amount of energy. It is commonly used in nuclear power plants to generate electricity and in nuclear weapons to release explosive energy. Fission reactions can sustain a chain reaction under controlled conditions, producing a continuous release of energy.

What is one drawback of using nuclear fission?

If it is not properly watched and bad materials are used then disasters can happen, like in Cherynobl.

What is a nonexample of nuclear fission?

A nonexample of nuclear fission would be chemical reactions, where chemical bonds are broken and formed between atoms, resulting in a rearrangement of molecules. Nuclear fission involves splitting of atomic nuclei and releasing a large amount of energy.

What are other information about nuclear fission?

Nuclear fission is a process in which the nucleus of an atom splits into two or more smaller nuclei, releasing a large amount of energy. This process is used in nuclear power plants to produce electricity. It also plays a significant role in nuclear weapons, where fission reactions release energy explosively.

What is an example of nuclear fission which is applicable in your daily life?

We are constantly bombarded by cosmic radiation from space, and background radiation from the soil. However, both are background, and we have no biological processes that depend on nuclear reactions to survive.

How do nuclear reactor produce energy by using fission reaction?

In a nuclear reactor, uranium atoms are bombarded with neutrons, causing them to split in a process called fission. This process releases a huge amount of heat energy, which is used to heat water and produce steam. The steam then drives turbines connected to generators, producing electricity.

Must of the energy released by nuclear fission is in the from of what rays?

The energy released by nuclear fission is primarily in the form of gamma rays, which are high-energy electromagnetic radiation. These gamma rays are emitted as a result of the conversion of mass into energy during the fission process.

What are the functions of pressure vessel and turbine in a nuclear reactor?

The pressure vessel contains the reactor core with its fuel, coolant, moderator, control elements, and emergency systems. The turbine is the device that on receiving the steam it spins and turns the electric generators to produce electricity.