Fundamentals of Physics Extended
Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 43, Problem 17P
To determine

To find:

(a) the second fission fragment in a particular fission event of 235U by slow neutrons.

(b) the amount of energy that goes into the 83Ge fragment.

(c) the amount of energy that goes into the other fragment.

(d) the speed of 83Ge just after the fission.

(e) the speed of the other fragment just after the fission.

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In a particular fission event in which 235U is fissioned by slow neutrons, no neutron is emitted and one of the primary fission fragments is 83Ge. (a) What is the other fragment? The disintegration energy is Q = 170 MeV. How much of this energy goes to (b) the 83Ge fragment and (c) the other fragment? Just after the fission, what is the speed of (d) the 83Ge fragment and (e) the other fragment?
235U nucleus generates 185 The electric power generated by a single average size nuclear reactor block is between 400 and 800 MW. The fission of one MeV energy on average. What ís the total mass of the fuel rods loaded into a 780 MW reactor for a one year period, if the fuel rods contain 6.00 percent of 235U? Assume that the overall thermodynamic efficiency of converting heat to electric energy is 30.0 percent.
Suppose the difference in rest energy of the neutron and proton were Qn = (mn − mp)c2 = x MeV instead of Qn = 1.29MeV, with all other physical parameters unchanged. Estimate Ymax, the maximum possible mass fraction in 4He, assuming that all available neutrons are incorporated into 4He nuclei. Value: x=0.183 MeV Hint: Compare the new rest energy of the neutron to the electron and consider how that would impact the decay of neutrons.  Will free neutrons decay at all in this scenario?  If the neutron decay is negligible, then the ratio of protons to neutrons to protons will remain the same as it was at the time of freeze-out (for a given Qn).
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