4. Show that the following reactions are forbidden by the conservation of charge and/or baryon number laws: A→p+e° +v+n
4. Show that the following reactions are forbidden by the conservation of charge and/or baryon number laws: A→p+e° +v+n
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Can you answer number 4?
Transcribed Image Text:1. (a) Calculate the energy release in MeV of gasoline per molecule of n-heptane burned. The
molecular mass of n-heptane is 100 u, and it releases energy at a rate of 4.8 x 10' J/kg. (b)
Calculate the ratio of energy released by one uranium-nucleus fission (approximately 200
MeV) and one n-heptane molecule combustion.
2. Estimate the number of "U fission reactions per second in a nuclear power plant that
produces 1000 MW of electricity and 2000 MW of waste heat.
3. A series of reactions on the sun leads to the combination of three helium nuclei (* 2He) to
(:),
16 (a) Calculate the net energy released by the reactions. (b)
form one carbon nucleus
What fraction of the total mass of the three helium nuclei is converted to energy?*
4. Show that the following reactions are forbidden by the conservation of charge and/or baryon
A" →p+e +v, +n;
number laws:
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