Nuclear Fission
Chemistry ⇒ Nuclear Chemistry
Nuclear Fission starts at 11 and continues till grade 12.
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A nuclear reactor is operating at a steady state. What does this imply about the neutron population?
A sample of Uranium-235 absorbs a neutron and splits into Barium-141, Krypton-92, and three neutrons. Write the balanced nuclear equation for this reaction.
Calculate the energy released when 1.0 g of Uranium-235 undergoes complete fission. (Given: 1 atom of U-235 releases about 200 MeV, Avogadro’s number = 6.022 × 10²³ mol⁻¹, molar mass of U-235 = 235 g/mol, 1 eV = 1.602 × 10⁻¹³ J)
Calculate the number of fission events required to produce 1.0 kWh of energy. (Given: 1 fission event releases 200 MeV, 1 eV = 1.602 × 10⁻¹⁹ J, 1 kWh = 3.6 × 10⁶ J)
Describe the difference between spontaneous and induced fission.
Describe the main safety feature of a nuclear reactor that prevents the release of radioactive materials.
Describe the role of coolant in a nuclear fission reactor.
Describe what is meant by a chain reaction in nuclear fission.
Explain the difference between nuclear fission and nuclear fusion.
Explain why a nuclear chain reaction can be dangerous if not controlled.
Explain why nuclear fission is considered a source of non-renewable energy.
Explain why Uranium-238 is not suitable as a fuel for thermal neutron reactors.
In a nuclear reactor, what is the role of a moderator?
In the context of nuclear fission, what is meant by 'prompt' and 'delayed' neutrons?
Name one commonly used material for control rods in nuclear reactors.
State one environmental concern associated with nuclear fission reactors.
State one major application of nuclear fission.
What is nuclear fission?
Which isotope is more likely to undergo fission upon neutron absorption: Uranium-235 or Uranium-238?
