1258_Physics ProblemsTechnical Physics

1258_Physics ProblemsTechnical Physics - Chapter 45 P45.11...

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Chapter 45 599 P45.11 mass of U available metric tons g 1 metric ton g 235 F H G I K J 0007 10 10 71 0 9 6 12 . af ej number of nuclei g 235 g mol nuclei mol nuclei × F H G I K J ×= × 0 602 10 18 10 12 23 34 .. The energy available from fission (at 208 MeV/event) is E ≈× × = × 1 8 10 208 1 60 10 6 0 10 34 13 23 . events MeV event J MeV J bg . This would last for a time interval of t E =≈ × × × F H G I K J P 60 10 86 10 1 3000 23 10 . . J 7.0 10 J s s yr 3.16 10 s yr 12 7 . P45.12 In one minute there are 60 0 500 10 4 . . s 1.20 ms fissions . So the rate increases by a factor of 100025 268 10 50 000 5 . P45.13 == × 10 0 1 00 10 7 MW J s If each decay delivers 1 00 1 60 10 13 MeV J , then the number of decays/s 625 10 19 . B q . Section 45.4 Nuclear Fusion P45.14 (a) The Q value for the D-T reaction is 17.59 MeV. Specific energy content in fuel for D-T reaction:
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This note was uploaded on 12/15/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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