Nuclear Fusion
Chemistry ⇒ Nuclear Chemistry
Nuclear Fusion starts at 11 and continues till grade 12.
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A fusion reaction has a Q-value of 17.6 MeV. What does the Q-value represent in this context?
A fusion reactor operates at a temperature of 150 million Kelvin. Is this temperature higher or lower than the core temperature of the Sun?
Describe one major technological challenge in achieving practical nuclear fusion energy on Earth.
Describe the environmental impact of nuclear fusion compared to fossil fuels.
Describe the main advantage of fusion over fission as an energy source.
Describe the role of plasma in nuclear fusion reactors.
Explain the concept of the Coulomb barrier in nuclear fusion.
Explain why achieving a net positive energy output from fusion is difficult.
Which isotope is commonly used along with deuterium in experimental fusion reactors? (1) Helium-3, (2) Tritium, (3) Carbon-14, (4) Uranium-235
Which of the following best describes the main difference between nuclear fusion and nuclear fission? (1) Fusion combines nuclei, fission splits nuclei. (2) Fusion splits nuclei, fission combines nuclei. (3) Both fusion and fission split nuclei. (4) Both fusion and fission combine nuclei.
Which of the following best explains why nuclear fusion is considered a potential source of clean energy? (1) It uses abundant fuel, (2) It produces minimal greenhouse gases, (3) It generates less radioactive waste, (4) All of the above
Which of the following is a byproduct of the deuterium-tritium fusion reaction? (1) Neutron, (2) Proton, (3) Electron, (4) Positron
Fill in the blank: The energy released in fusion is primarily due to the difference in _______ between the reactants and products.
Fill in the blank: The minimum temperature required for hydrogen nuclei to overcome their electrostatic repulsion and undergo fusion is approximately _______ million Kelvin.
Fill in the blank: The most common fusion reaction in stars involves the fusion of _______ nuclei to form helium.
Fill in the blank: The process of combining two light nuclei to form a heavier nucleus is called _______.
True or False: Fusion reactions can be initiated at room temperature using current technology.
True or False: Fusion reactions produce more long-lived radioactive waste than fission reactions.
True or False: Nuclear fusion is the process that powers the Sun.
True or False: The CNO cycle is a fusion process that occurs in more massive stars than the Sun.
