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Nuclear Energy

Nuclear energy covers technology of reactors, different types of reactors, their history and development, exploitation in different countries, operating experiences, problems of nuclear waste.

6,180 Questions

What process release the energy in the nuclear reactors used in power plants?

The energy in nuclear reactors is released through the process of nuclear fission, where the nucleus of an atom is split into two smaller nuclei, releasing a large amount of energy in the form of heat. This heat is used to produce steam that drives turbines connected to generators, ultimately producing electricity.

Why we shouldn't use atomic energy?

Some reasons why some people argue against the use of atomic energy include risks of accidents like meltdowns or radiation leaks, challenges with disposing of radioactive waste, and the potential for nuclear proliferation and weaponization. Additionally, nuclear energy can be expensive to build and maintain, and there is still uncertainty around long-term health and environmental impacts.

Why is U-235 used in nuclear power plants instead of smaller simpler radioisotopes?

We see uranium-235 (U-235) used in nuclear power plants because it can capture thermal neutrons fairly readily, and it will usually fission releasing more neutrons to continue the nuclear chain reaction.

What is a major drawback of nuclear power?

A major drawback of nuclear power is the potential for accidents and meltdowns, which can have catastrophic consequences for both human health and the environment. Additionally, there is the challenge of safely storing and disposing of radioactive waste generated by nuclear power plants, which remains hazardous for thousands of years.

What are used in nuclear reactors to absorb neautron6neutrons?

Control rods made of materials like boron or cadmium are used in nuclear reactors to absorb neutrons and help regulate the power level by controlling the rate of fission reactions. By adjusting the position of these control rods within the reactor core, operators can fine-tune the neutron flux and maintain safe and stable operation.

What is the difference between cold fusion and what nuclear power plants do to create energy?

Cold fusion is a theoretical nuclear reaction that supposedly occurs at room temperature, while nuclear power plants use controlled nuclear fission reactions to generate heat and produce electricity. Cold fusion has not been reliably demonstrated, while nuclear power plants worldwide successfully use fission to generate a significant portion of electricity.

Why is uranium not a fuel like the fossil fuels?

Uranium is a fuel. It is not like a fossil fuel in that it is not consumed by burning (rapid oxidation) to produce heat.

Uranium is consumed by its radioactive decay. This process releases heat which is used, just like a fossil fuel, to make steam to run power plants. It is consumed much more slowly than is fossil fuels, and it does not release carbon dioxide, sulfur oxides and other gases to the atmosphere when it is consumed. It does create an ash, the spent fuel. Spent uranium fuel does not fly into the air the way fossil fuel ash might if not controlled, but it does have to be disposed of. - Since spent uranium fuel is radioactive, making disposal more difficult.

What kind of nuclear reaction is seen in 9039Y 9040Zr plus 0-1e?

This is an example of beta decay, specifically beta-minus decay. In this reaction, a neutron in the nucleus is transformed into a proton, electron, and anti-neutrino. This results in the formation of 90Zr from 90Y.

What is the difference between nuclear fusion in the sun and nuclear fission in a power plant on earth?

Fusion and fission are opposing processes. In the sun, hydrogen atoms are fused together to form helium. On earth, the most commonly used element is uranium, which is split into smaller atoms.

What is the temperature of nuclear fusion in Celsius?

The temperature of nuclear fusion is typically around 15 million degrees Celsius. This extreme temperature is required to overcome the electrostatic repulsion between positively charged atomic nuclei and allow them to fuse together to release energy.

What effect does nuclear radiation have on an atom?

Nuclear radiation can ionize atoms, meaning it can strip electrons from them. This can cause the atom to become unstable and potentially change into a different element through decay. Additionally, high levels of radiation can damage an atom's structure, leading to mutations and potential health risks.

What causes fission?

Only certain elements are fissionable, or at least with practical means. The fission of for example the atom U235 happens when it is struck by a slow neutron, it splits, which is fission, releasing two smaller atoms and two or three neutrons (products). The products from the nuclear reaction weigh less then the original atoms. The difference in weight is converted into energy.

What In a nuclear reactor lowering control rods will result in .?

Lowering control rods into a nuclear reactor will absorb neutrons, reducing the rate of fission reactions and therefore decreasing the reactor's power output. This is a common method used to control and regulate the reactor's power level.

What is the process by which the nuclei of atoms dude together producing a tremendous amount of energy?

The process is called nuclear fusion, where the nuclei of atoms combine to form a heavier nucleus, releasing large amounts of energy in the process. This process is what powers the sun and stars and is actively researched as a potential energy source on Earth.

What type of nuclear burst occurs above 10000 feet?

A high-altitude nuclear burst occurs above 10000 feet, creating an electromagnetic pulse (EMP) that can disrupt electronic devices over a wide area. The EMP can damage electrical systems and disrupt communication networks, making it a significant concern for national security.

What are the Nuclear radiation symptoms?

Symptoms of radiation exposure can include nausea, vomiting, diarrhea, hair loss, skin burns, and in severe cases, organ failure. Long-term effects can include an increased risk of cancer and other chronic health conditions. It's important to seek medical attention if you suspect you have been exposed to high levels of radiation.

What does Einstein's energy equation say about the energy that is derived from nuclear fission reactions?

Nothing special.

E = M * C ^ 2 is just a units conversion equation (no different in concept than other such units conversion equations, except before the development of Special Relativity there had been no reason to assume that the units that energy is measured in and the units that mass is measured in were equivalent units that could be converted).

Why does fossil fuels and nuclear plants heat water?

The useful energy we get from fossil fuels and nuclear plants is heat. and heating water to make steam is about the most direct way to capture that thermal energy. Steam is used to spin turbines to turn electric power generators, and that allows us to harness the energy.

What is a example of nuclear reaction?

An example of a nuclear reaction is nuclear fusion, where two light atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process. This reaction is the process that powers the sun and other stars.

What in the 1980s a nuclear reactor exploded and burned near which town?

In the 1980s, a nuclear reactor exploded and burned near the town of Chernobyl in the former Soviet Union, now located in Ukraine. The Chernobyl disaster on April 26, 1986, is considered one of the worst nuclear accidents in history.

How are nuclear energy and wind energy similar?

Both nuclear energy and wind energy are sources of clean, renewable energy that do not produce greenhouse gas emissions. Additionally, they both provide a reliable source of electricity when harnessed effectively.

In a nuclear reaction what type of reaction provides the power?

Energy comes from either nuclear fission or nuclear fusion. Each nuclear reaction has unique characteristics, and there are answered questions here that can enlighten an investigator as to the particulars.

What factors makes nuclear energy unsustainable?

Nuclear energy is considered unsustainable due to concerns such as high costs of construction and decommissioning, long-term storage of radioactive waste, the potential for accidents and the risks associated with proliferation of nuclear weapons material. Additionally, the limited availability of uranium resources and the impact on the environment from uranium mining are also factors contributing to the unsustainability of nuclear energy.

What is an advantage of using nuclear power over natural gas to generate electricity?

PLEASE NOTE that there are also significant disadvantages.The inherent ADVANTAGE of nuclear energy is the huge energy density of nuclear fuels, which is somewhere around a million times as much as what you get from chemical fuel.