Multiple Choice
Which force is responsible for holding the protons and neutrons together within the nucleus of an atom?
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21. Nuclear Chemistry
Nuclear Binding Energy
Multiple Choice
Why do nuclear power plants use fission instead of fusion?
A
Fusion reactions produce less energy than fission reactions.
B
Fission does not produce any radioactive waste, while fusion does.
C
Fission reactions are easier to control and initiate with current technology.
D
Fusion requires less energy input to start the reaction compared to fission.
Verified step by step guidance1
Understand the difference between nuclear fission and fusion: Fission is the splitting of a heavy nucleus into smaller nuclei, releasing energy, while fusion is the combining of light nuclei to form a heavier nucleus, also releasing energy.
Recognize that although fusion reactions can release more energy per reaction than fission, fusion requires extremely high temperatures and pressures to overcome the repulsive forces between nuclei, making it very difficult to initiate and sustain.
Note that fission reactions can be initiated and controlled at much lower energies using neutron bombardment, which is achievable with current technology in nuclear reactors.
Consider the technological challenges: Fusion reactors require advanced containment methods (like magnetic confinement) to maintain the necessary conditions, which are not yet fully developed for practical energy production.
Conclude that nuclear power plants use fission instead of fusion primarily because fission reactions are easier to control and initiate with today's technology, making them the practical choice for energy generation.
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