A) Fusion releases less energy than fission.
Explanation:
Nuclear fusion is a process in which nuclei of light elements combine together into heavier elements; in the process, the mass of the final nucleus is less than the total mass of the initial nuclei, therefore energy is released during the reaction.
Nuclear fusion is able to liberate a huge amount of energy, according to the famous Einstein's equation:
[tex]E=mc^2[/tex]
where
E is the energy released
m is the mass converted into energy in the process
c is the speed of light
Let's now analyze the statements given:
A) Fusion releases less energy than fission. --> FALSE. In fact, fusion releases much more energy than fission.
B) Fusion is extremely difficult to contain and maintain here on earth. --> TRUE. In order for fusion to occur, the initial nuclei must overcome the electrostatic repulsion between them in order to come very close to each other, within the range of action of the strong force; for this to happen, the temperature and the pressure must be enormous, and this makes fusion difficult to occur on Earth.
C) Fusion occurs when low mass nuclei, such as hydrogen collide and combine to form nuclei with greater masses. --> TRUE
D) fusion most commonly combines heavy isotopes of hydrogen into helium. --> TRUE, this is the most common reaction that occurs within the core of the stars
E) Fusion could be the world's answer to clean unlimited amounts of energy. --> TRUE: energy from fusion is a clean source of energy (there is no radioactive waste) and virtually unlimited, since it can be produced starting from hydrogen.
Learn more about nuclear reactions:
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