ismchapter12edition4 - Chapter 12 ! Nuclear Reactions and...

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281 Chapter 12 ! Nuclear Reactions and Applications 12-1. (a) (b) (c) 12-2. (a) (b) The threshold for this endothermic reaction is: (c)
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Chapter 12 ! Nuclear Reactions and Applications 282 12-3. Possible products: 12-4. (a) (b) 12-5. The number of 75 As atoms in sample N is: The reaction rate R per second per 75 As atom is:
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Chapter 12 ! Nuclear Reactions and Applications 283 (Problem 12-5 continued) 12-6. (a) (b) (c) 12-7. (a) 14 C( b ) n( c ) 58 Ni (d) " (e) 14 N (f) 16 0 Er (g) 3 H( h ) p 12-8. 12-9.
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Chapter 12 ! Nuclear Reactions and Applications 284 12-10. The fission reaction rate is: (a) For the reaction rate to double (b) For (c) For (d) Total time (a) 7.27 ms (b) 24.2 ms (c) 48.3 ms (e) Total time (a) 0.727 s (b) 2.42 s (c) 4.83 s 12-11. 12-12. Each fusion requires one 2 H atom (and one 3 H atom; see Equation 12-14), so 2 H must be provided at the rate of
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Chapter 12 ! Nuclear Reactions and Applications 285 12-13. The reactions per 2 3 8 U atom R is: The number N of 2 3 8 U atoms is: Total 2 3 9 U atoms produced = R N 12-14.
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Chapter 12 ! Nuclear Reactions and Applications 286 12-15. (a) 1 day = The fission of 1kg of 2 3 5 U provides (from Example 12-4) (b) (c) Burning coal produces Ratio of kg of coal needed per kg of 2 3 5 U is: For 1 day: This is about 10,000 tons/day, the approximate capacity of 100 railroad coal hopper cars. For 1 year: 12-16. (a) Each fusion releases 5.49 MeV, Energy release (b) Energy used/person (in 1999)
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Chapter 12 ! Nuclear Reactions and Applications 287 (Problem 12-16 continued) Energy used per person per hour = At that rate the deuterium fusion in 1m 3 of water would last the "typical" person 12-17. (a) (b) This reaction is not likely to occur. Both product nuclei are neutron-rich and highly unstable.
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ismchapter12edition4 - Chapter 12 ! Nuclear Reactions and...

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