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Consider the following statements regarding nuclear fusion and nuclear fission.
- Substantially more amount of energy is released in fission process than fusion.
- Nuclear fusion is a carbon-free source of energy, and has negligible radiation risks.
- Nuclear fusion reactions happen only at very low temperatures, say cryogenic temperature range.
How many of the above statements are correct?
- a)Only one
- b)Only two
- c)All three
- d)None
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regarding nuclear fusion and nuclear...
Introduction:
This question is related to the concepts of nuclear fusion and nuclear fission, and it asks us to identify the correct statements regarding these processes. Let's analyze each statement one by one to determine their accuracy.
Statement 1: Substantially more amount of energy is released in fission process than fusion.
This statement is correct. Nuclear fission involves the splitting of heavy atomic nuclei, such as uranium-235 or plutonium-239, into smaller fragments. This process releases a significant amount of energy due to the conversion of a small fraction of mass into energy, as described by Einstein's famous equation E=mc^2. The energy released in nuclear fission is millions of times greater than that released in chemical reactions, making it an attractive option for power generation.
Statement 2: Nuclear fusion is a carbon-free source of energy, and has negligible radiation risks.
This statement is correct. Nuclear fusion involves the combining of light atomic nuclei, such as isotopes of hydrogen, to form a heavier nucleus. Unlike nuclear fission, fusion does not produce long-lived radioactive waste or emit greenhouse gases, making it a clean and sustainable energy source. Additionally, the radiation risks associated with fusion reactions are minimal because the reactants used in fusion, such as deuterium and tritium, are not highly radioactive and can be safely handled.
Statement 3: Nuclear fusion reactions happen only at very low temperatures, say cryogenic temperature range.
This statement is incorrect. Nuclear fusion reactions require extremely high temperatures and pressures to overcome the electrostatic repulsion between atomic nuclei. These conditions are typically achieved in a plasma state, where the reactants are heated to temperatures in the range of tens of millions of degrees Celsius. At such high temperatures, the atomic nuclei gain enough kinetic energy to overcome the repulsive forces and undergo fusion. Cryogenic temperatures, on the other hand, typically refer to temperatures below -150 degrees Celsius and are not suitable for sustaining fusion reactions.
Conclusion:
Out of the three statements given, only one statement is correct. Substantially more energy is released in the fission process than in fusion, making it a highly efficient energy source. Nuclear fusion, on the other hand, is a carbon-free and low-risk source of energy but requires extremely high temperatures for the fusion reactions to occur.
This question is related to the concepts of nuclear fusion and nuclear fission, and it asks us to identify the correct statements regarding these processes. Let's analyze each statement one by one to determine their accuracy.
Statement 1: Substantially more amount of energy is released in fission process than fusion.
This statement is correct. Nuclear fission involves the splitting of heavy atomic nuclei, such as uranium-235 or plutonium-239, into smaller fragments. This process releases a significant amount of energy due to the conversion of a small fraction of mass into energy, as described by Einstein's famous equation E=mc^2. The energy released in nuclear fission is millions of times greater than that released in chemical reactions, making it an attractive option for power generation.
Statement 2: Nuclear fusion is a carbon-free source of energy, and has negligible radiation risks.
This statement is correct. Nuclear fusion involves the combining of light atomic nuclei, such as isotopes of hydrogen, to form a heavier nucleus. Unlike nuclear fission, fusion does not produce long-lived radioactive waste or emit greenhouse gases, making it a clean and sustainable energy source. Additionally, the radiation risks associated with fusion reactions are minimal because the reactants used in fusion, such as deuterium and tritium, are not highly radioactive and can be safely handled.
Statement 3: Nuclear fusion reactions happen only at very low temperatures, say cryogenic temperature range.
This statement is incorrect. Nuclear fusion reactions require extremely high temperatures and pressures to overcome the electrostatic repulsion between atomic nuclei. These conditions are typically achieved in a plasma state, where the reactants are heated to temperatures in the range of tens of millions of degrees Celsius. At such high temperatures, the atomic nuclei gain enough kinetic energy to overcome the repulsive forces and undergo fusion. Cryogenic temperatures, on the other hand, typically refer to temperatures below -150 degrees Celsius and are not suitable for sustaining fusion reactions.
Conclusion:
Out of the three statements given, only one statement is correct. Substantially more energy is released in the fission process than in fusion, making it a highly efficient energy source. Nuclear fusion, on the other hand, is a carbon-free and low-risk source of energy but requires extremely high temperatures for the fusion reactions to occur.
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Community Answer
Consider the following statements regarding nuclear fusion and nuclear...
Only statement 2 is correct.
A large amount of energy is released in both these processes, but substantially more in fusion than fission. For example, the fusion of two nuclei of a heavier isotope of hydrogen, called tritium, produces at least four times as much energy as the fission of a uranium atom which is the normal process of generating electricity in a nuclear reactor. Besides greater energy yield, fusion is also a carbon-free source of energy, and has negligible radiation risks.
But fusion reactions happen only at very high temperatures, 10 times the temperature that exists at the core of the Sun, and creating such an extreme environment in a laboratory requires huge amounts of energy.
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Consider the following statements regarding nuclear fusion and nuclear fission. Substantially more amount of energy is released in fission process than fusion. Nuclear fusion is a carbon-free source of energy, and has negligible radiation risks. Nuclear fusion reactions happen only at very low temperatures, say cryogenic temperature range.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'A'. Can you explain this answer?
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