Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 10, Problem 72TE
To determine
To find:
The process in which thorium-232 becomes fissionable so that it can be used in the reactor.
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Conceptual Integrated Science
Ch. 10 - Prob. 1RCQCh. 10 - Prob. 2RCQCh. 10 - Prob. 3RCQCh. 10 - Prob. 4RCQCh. 10 - What role do neutrons play in the atomic nucleus?Ch. 10 - Prob. 6RCQCh. 10 - Prob. 7RCQCh. 10 - What is the long-range fate of all the uranium...Ch. 10 - What is meant by the half-life of a radioactive...Ch. 10 - What is the half-life of uranium-238?
Ch. 10 - Prob. 11RCQCh. 10 - Prob. 12RCQCh. 10 - Prob. 13RCQCh. 10 - Prob. 14RCQCh. 10 - Prob. 15RCQCh. 10 - How does the mass per nucleons in uranium compare...Ch. 10 - What is the origin of the most of the natural...Ch. 10 - Prob. 18TISCh. 10 - Is radioactivity on Earth something relatively...Ch. 10 - What happens to a nitrogen atom in the atmosphere...Ch. 10 - Prob. 21TISCh. 10 - Why is lead found in all deposits of uranium ores?Ch. 10 - How does the mass of a pair of atoms that have...Ch. 10 - Prob. 24TISCh. 10 - What kind of nuclear power is responsible for...Ch. 10 - Rank these three types of radiation by their...Ch. 10 - Consider the atoms C-12, C-14, and N-14. From...Ch. 10 - Rank these isotopes in order of their...Ch. 10 - Rank the following in order from the most energy...Ch. 10 - Prob. 34TSCh. 10 - Consider a radioactive sample with a half-life of...Ch. 10 - A radioisotope is placed near a radiation...Ch. 10 - Uranium-238 absorbs a neutron and then emits a...Ch. 10 - The formula for the half-life can be expressed as...Ch. 10 - The formula for the half-life can be expressed as...Ch. 10 - Prob. 40TSCh. 10 - Why is it both impractical and impossible to...Ch. 10 - Prob. 42TECh. 10 - Prob. 43TECh. 10 - Prob. 44TECh. 10 - Prob. 45TECh. 10 - Prob. 46TECh. 10 - Prob. 47TECh. 10 - Prob. 48TECh. 10 - Prob. 49TECh. 10 - Prob. 50TECh. 10 - Prob. 51TECh. 10 - Prob. 52TECh. 10 - How is the rate of transmutation related to...Ch. 10 - Why is lead found in all deposits of uranium ores?Ch. 10 - Prob. 55TECh. 10 - Elements heavier than uranium in the periodic...Ch. 10 - If you make an account of 1000 people born in the...Ch. 10 - How does radioactivity allow archeologists to...Ch. 10 - What does the proportion of lead and uranium in...Ch. 10 - Radium-226 is a common isotope on Earth, but it...Ch. 10 - Prob. 61TECh. 10 - Prob. 62TECh. 10 - Prob. 63TECh. 10 - Prob. 64TECh. 10 - Name three fissionable isotopes.Ch. 10 - Prob. 66TECh. 10 - Prob. 67TECh. 10 - Why is carbon better than lead as a moderator in...Ch. 10 - Prob. 69TECh. 10 - Prob. 70TECh. 10 - Prob. 71TECh. 10 - Prob. 72TECh. 10 - Prob. 73TECh. 10 - Prob. 74TECh. 10 - Prob. 75TECh. 10 - How does the mass per nucleon in uranium compare...Ch. 10 - Prob. 77TECh. 10 - Prob. 78TECh. 10 - Prob. 79TECh. 10 - Prob. 80TECh. 10 - How does the energy of the gasoline come from...Ch. 10 - Prob. 82TECh. 10 - Prob. 83TECh. 10 - Prob. 84TECh. 10 - Prob. 85TECh. 10 - Prob. 86TECh. 10 - Prob. 87TECh. 10 - Prob. 88TECh. 10 - Prob. 89TECh. 10 - Prob. 90TECh. 10 - Prob. 91TDICh. 10 - The 1986 accident at the Chernobyl, in which...Ch. 10 - Your friend Paul says that the helium used to...Ch. 10 - Prob. 94TDICh. 10 - Prob. 95TDICh. 10 - Prob. 96TDICh. 10 - Prob. 1RATCh. 10 - Prob. 2RATCh. 10 - A sample of radioactive material is usually a...Ch. 10 - What evidence supports the contention that the...Ch. 10 - When the isotope bismuth-213 emits an alpha...Ch. 10 - Prob. 6RATCh. 10 - Prob. 7RATCh. 10 - Prob. 8RATCh. 10 - Prob. 9RATCh. 10 - If an iron nucleus split in two, its fission...
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- (a) Calculate the energy released in the neutron- induced fission n+238U96Sr+140Xe+3n , given m(96Sr)=95.921750uand m(140Xe)=139.92164 . This result is about 6 MeV greater than the result for spontaneous fission. Why? Confirm that the total number of nucleons and total charge are conserved in this reaction.arrow_forward(a) Calculate the energy released in the neutron- Induced fission reaction n+235U92Kr+142Ba+2n , given m(92Kr) = 91.926269 u and m(142Ba)= 141.916361 u. (b) Confirm that the total number of nucleons and total charge are conserved in this reaction.arrow_forwardAssume onefourth of the yield of a typical 320kT strategic bomb comes from fission reactions averaging 200 MeV and the remainder from fusion reactions averaging 20 MeV. (a) Calculate the number of fissions and the approximate mass of uranium and plutonium fissioned, taking the average atomic mass to be 238. (b) Find the number of fusions and calculate the approximate mass of fusion fuel, assuming an average total atomic mass of the two nuclei in each reaction to be 5. (c) Considering the masses found, does it seem reasonable that some missiles could carry 10 warheads? Discuss, noting that the nuclear fuel is only a part of the mass of a warhead.arrow_forward
- It is estimated that the total explosive yield of all the nuclear bombs in existence currently is about 4.000 MT. (a) Convert this amount of energy to kilowatthours, noting that 1kWh=3.60106J. (b) What would the monetary value of this energy be if it could be converted to electricity costing 10 cents per kW.h?arrow_forwardHow can a nuclear reactor contain many critical masses and not go supercritical? What methods are used to control the fission in the reactor?arrow_forwardNeutrons from a source (perhaps the one discussed in the preceding problem) bombard natural molybdenum, which is 24 percent 98Mo. What is the energy output of the reaction 98Mo+n99Mo+ ? The mass of 98MB is given in Appendix A: Atomic Masses, and that of 99Mo is 98.907711 u.arrow_forward
- (a) Calculate the energy released in the a decay of 238U . (b) What fraction of the mass of a single 238U is destroyed in the decay? The mass of 234Th is 234.043593 u. (c) Although the fractional mass loss is large for a single nucleus, it is difficult to observe for an entire macroscopic sample of uranium. Why is this?arrow_forward(a) Calculate the energy released in the neutroninduced fission reaction n+235U92Kr+142Ba+2n, given m(92Kr)=91.926269 and m(142Ba)=141.916361u. (b) Confirm that the total number at nucleons and total charge are conserved in this reaction.arrow_forwardA nuclear physicist finds 1.0of 236Uin a piece of uranium ore (T1/2=2.348107y) . (a) Use die decay law to determine how much 236Uwould had to have been on Earth when it formed 4.543109yago for 1.0gto be left today, (b) What is unreasonable about this result? (c) How is this unreasonable result resolved?arrow_forward
- The cure of a nuclear reactor generates a large amount of thermal energy from the decay of fission products, even when the power-producing fission chain reaction is turned off. Would this residual heat be greatest after the reactor has run for a long time or short time? What if the reactor has been shut down for months?arrow_forwardIn the science section of the newspaper, an article reports the efforts of a group of scientists to create a new nuclear reactor based on the fission of iron (Fe). Is this a good idea?arrow_forwardWhy is a conventional fission nuclear reactor not able to explode as a bomb?arrow_forward
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