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Fusion and fission quiz
State two advantages for nuclear fission and nuclear fusion
Advantages and disadvantages of nuclear fusion use
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In the world that we live, Protons and neutrons make up a nucleus, which is the foundation of nuclear science. Fission and fusion involves the dispersal and combination of elemental nucleus and isotopes, and part of nuclear science is to understand the process behind this phenomenon. Nuclear fusion and nuclear fission are different types of reactions that release energy due to the presence of high-powered atomic bonds between particles found within a nucleus.This essay will compare and contrast Fusion ans Fission and to discuss such aspects as sustainability, feasibility, dangers and benefits (among others).
Comparison and contraste of Nuclear fusion and Nuclear fission
Nuclear fusion is the reaction in
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In a typical nuclear reaction involving 235U and a neutron:
Fusion and Fission Physics
Atoms are held together by two of the four fundamental forces of nature the weak and strong nuclear bonds. The total amount of energy held within the bonds of atoms is called binding energy. The more binding energy held within the bonds, the more stable the atom. Moreover, atoms try to become more stable by increasing their binding energy.
The nucleon of an iron atom is the most stable nucleon found in nature, and it neither fuses nor splits. This is why iron is at the top of the binding energy curve. For atomic nuclei lighter than iron and nickel, energy can be extracted by combining iron and nickel nuclei together through nuclear fusion. In contrast, for atomic nuclei heavier than iron or nickel, energy can be released by splitting the heavy nuclei through nuclear fission.
The notion of splitting the atom arose from New Zealand-born British physicist E. Rutherford works, which is also led to the discovery of the
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The process performed by nuclear power plants produce radiations that do not lead to any hazardous effects to the nature. With this, people can assure that the environment is safe from nuclear fission.
With nuclear fission, people can use an energy source alternative that is free from CO¬2¬. It is certainly a set up technique to produce electrical energy without having to give off Carbon Dioxide and it is the greatest advantage it provides. Furthermore, this method will not generate some other forms of toxins into the atmosphere, such as smog.
Fusion is an experimental technology for producing power. Therefore, the only product that is created during the nuclear fusion process is helium, which is not a green house gas. This is a great for the environment and our atmosphere because it does not contribute anything to the global warming problem. Also this product is safe and non-toxic, and it is one of the biggest benefits of using nuclear fusion, rather than nuclear fission. Nuclear waste can be very harmful to the environment and to people, and nuclear fusion does not cause
The development of atomic bomb boosted the level of understanding in terms of physics and chemistry of that particular time period. Physicists started to realize that stable nuclei can be converted to unstable nuclei. Through such process, they discovered that heavy nuclei can undergo nuclear fission. While testing, they added a neutron to an isotope of Uranium 235. This resulted Uranium 235 to become unstable and break down into Barium and Krypton, releasing two to three more neutrons. The breakdown of Uranium 235 is called “fission”. When the released neutrons attach to other isotopes of Uranium 235, this can result in a chain reaction of fission. For every generation of fission, the amount of fission is doubled, and this resulted in an extreme outburst of energy. The amount of energy released by this process is related to Einstein’s famous equation “E=mc^2” (Wolf).
All these effects were the cause of the discovery of nuclear fission and its properties. Nuclear Fusion Nuclear fusion is the process used by the sun and the stars in our solar system to produce their energy. Fusion involves smashing hydrogen atoms together at high velocities to form helium, and the matter is made into energy.
Physicists found out that among the pieces of a split atom were newly produced neutrons. These might encounter other uranium nuclei, cause them to split, and start a chain reaction. If the chain reaction was limited to a moderate pace, a new source of energy could be the result. The chain reaction could release energy rapidly and with explosive force. Leo Szilard, Eugene Wigner, and Edward Teller, Hungarian-born physicists, were frightened by the possibility that Germany might produce an atomic bomb.
physics. The work of Ernest Rutherford, H. G. J. Moseley, and Niels Bohr on atomic
Nuclear energy must be a consideration for the future with the rapidly depleting supply of fossil fuels. This type of energy can be created through nuclear fission and nuclear fusion. Nuclear fission is the splitting of a heavy atom into two or more parts, releasing huge amounts of energy. The release of energy can be controlled and captured for generating electricity. Nuclear fusion involves bombarding hydrogen atoms together to form helium. In the long run, nuclear fusion has greater potential than fission.
The concept of nuclear fission within the earth started in the fifties. Geophysicists began to question whether natural occurring nuclear fission was possible. It seemed that it was a definite possibility and eventually, empirical evidence presented itself. In 1972 at the Oklo uranium mine in western Africa, a natural nuclear fission reactor was discovered deep within the earth. It was later determined that this reactor had been burning for almost two million years (Earth’s Core). The discovery provided an answer to the possibility of naturally occurring nuclear fission in the earth. The answer was yes. This led to more questions, however. What were the implications of such a process occurring naturally inside of the Earth? As time progressed, scientists learned more about naturally occurring reactors and new theories developed. Through observations of other planets, and observing the Earth in respect to the solar system, some bold new theories arose.
Currently, plants use fission reactions, which is the bombardment of atoms with neutrons to split atoms into new materials, releasing the energy which we have all come to rely on. Fusion is essentially the opposite of fission. Fusion is the combination of atoms to make new elements, what is happening at the core of our sun currently. When atoms are fused, a massive amount of energy is released, making the cost of producing nearly free once fusion is obtained. One other large advantage of fusion energy is the by-products produced by the chain reaction in fusion. The second most abundantly used power source in fission reactors behind uranium is plutonium. Plutonium could be created by the fusion reactions, giving people not only energy from the initial reaction, but even more fuel to use for fission reactors
Nuclear energy is produced during the process named nuclear fission or nuclear fusion. The development of nuclear energy started in the 20th century and there is now worldwide recognition for using nuclear energy. Popular countries that operates nuclear power are United States, France, Japan, and Russia, the nuclear energy generates up to 6% of the world’s electricity supplies. Even though the energy is mostly used by many countries, but it may causes side effect to the living things in the environment. (WNA, 2012)
Although Rutherford claimed what an atom consisted of, his model was unstable due to the curved path the particles were moving in. This path emits electromagnetic radiation meaning electrons lose energy which causes them to spiral into the nucleus. Based on this Neil Bohr made modifications into Ernest Rutherford’s model by establishing a fixed size and energy that the electrons orbit in. Neil Bohr constructed his atomic model which was the first to be based on quantum theory. He described all the properties of an electron and how atoms absorb emitted radiation when the electrons jump between states of orbit.
The use of nuclear energy has increased in the United States since 1973. Nuclear energy's share of U.S. electricity generation has grown from 4 percent in 1973 to 19 percent in 1998. This is excellent news for the environment. Nuclear energy and hydropower are the cleanest large-scale means of electricity production. Since nuclear power plants do not burn fuel, they emit no combustion byproducts—like carbon dioxide—into the atmosphere (www.nei.org). Nuclear power can come from the fission of Uranium, plutonium or thorium or the fusion of hydrogen into helium. Today uranium (U-235 and U-238) is most commonly used in the production of nuclear energy. The expa...
energy out of a nuclear reaction than we put in. First, the energy per fission
Nuclear power, the use of exothermic nuclear processes to produce an enormous amount of electricity and heat for domestic, medical, military and industrial purposes i.e. “By the end of 2012 2346.3 kilowatt hours (KWh) of electricity was generated by nuclear reactors around the world” (International atomic energy agency Vienna, 2013, p.13). However, with that been said it is evident that the process of generating electricity from a nuclear reactor has numerous health and environmental safety issues.
Nuclear fusion occurs when two atomic nuclei collide with enough energy to bind together to form one nucleus. Nuclear fusion occurs in the core of our sun, and is the source of its tremendous heat. In the sun hydrogen nuclei, single protons, fuse together and form a new nucleus. In the conversion, a small amount of mass is converted into energy. It is this energy that heats the sun.
Scientists from earlier times helped influence the discoveries that lead to the development of atomic energy. In the late 1800’s, Dalton created the Atomic Theory which explains atoms, elements and compounds (Henderson 1). This was important to the study of and understanding of atoms to future scientists. The Atomic Theory was a list of scientific laws regarding atoms and their potential abilities. Roentagen, used Dalton’s findings and discovered x-rays which could pass through solid objects (Henderson 1). Although he did not discover radiation from the x-rays, he did help lay the foundations for electromagnetic waves. Shortly after Roentagen’s findings, J.J. Thompson discovered the electron which was responsible for defining the atom’s characteristics (Henderson 2). The electron helped scientists uncover why an atom responds to reactions the way it does and how it received its “personality”. Dalton’s, Roentagen’s and Thompson’s findings helped guide other scientists to discovering the uses of atomic energy and reactions. Such applications were discovered in the early 1900’s by using Einstein’s equation, which stated that if a chain reaction occurred, cheap, reliable energy could b...
Whilst there are clear arguments for and against nuclear energy, the future is promising; with scientists working on potential breakthroughs such as nuclear fusion, and the design of newer and better and reactors. Nuclear fusion is a reaction which causes the nuclei of atoms to collide and form a new atomic nucleus. It is essentially what heats the sun and stars and would produce no long-lived radioactive waste.22 If scientists could control the process of atomic fusion then it could become a never ending energy source for future use.