GK
NUCLEAR SCIENCE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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carbon
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coal
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uranium or plutonium
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hydrogen
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Detailed explanation-1: -All nuclear power plants use nuclear fission, and most nuclear power plants use uranium atoms. During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation. More neutrons are also released when a uranium atom splits.
Detailed explanation-2: -Plutonium-239 is primarily used as a fuel to power nuclear reactors. In fact, it enters into the composition of MOX fuel – mixed uranium and plutonium oxide. By combining the Pu 239 produced by nuclear reactors with depleted uranium, MOX can be used to fabricate one new fuel assembly from every 8 used fuel assemblies.
Detailed explanation-3: -Nuclear energy originates from the splitting of uranium atoms – a process called fission. This generates heat to produce steam, which is used by a turbine generator to generate electricity. Because nuclear power plants do not burn fuel, they do not produce greenhouse gas emissions.
Detailed explanation-4: -Plutonium, both that routinely made in power reactors and that from dismantled nuclear weapons, is a valuable energy source when integrated into the nuclear fuel cycle. In a conventional nuclear reactor, one kilogram of Pu-239 can produce sufficient heat to generate nearly 8 million kilowatt-hours of electricity.
Detailed explanation-5: -Plutonium-239, the isotope found in the spent MOX fuel, is much more radioactive than the depleted Uranium-238 in the fuel. Plutonium emits alpha radiation, a highly ionizing form of radiation, rather than beta or gamma radiation.