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Find the amount of energy released when `1` atom of Uranium `._(92)U^(235)(235.0439 "amu")` undergoes fission by slow neturon `(1.0087 "amu")` and is splitted into Krypton `._(36)Kr^(92)(91.8973 "amu")` and Barium `._(56)Br^(141)(140.9139 "amu")` assuming no energy is lost. Hence find the enrgy in `kWh`, when `1g` of it undergoes fission.

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`._(92)^(235)U+._(0)^(235)nrarr._(56)^(141)Ba+._(36)^(92)Kr+3(._(0)^(1)n)`
`Deltam = [{235.0439+1.0087}-{140.9139+91.8973+3xx1.0087}]`
`= 0.2135amu`
Equilvalent enrgy `= 0.2153xx931 = 200MeV`
Number of atoms/fission in `1g` of atom is
`(1)/(235) xx 6.023xx10^(23) = 2.56xx10^(21)`
Energy released in fission of `1g` of `._(92)^(235)U`
`= 2.56xx10^(21) xx 200MeV`
`= 2.56 xx 10^(21) xx 200 xx 1.6 xx 10^(-13)J`
`= (2.56xx10^(21)xx200xx1.6xx10^(-13))/(3.6xx10^(6))kWh`
`= 2.28 xx 10^(4) kWh`
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CP SINGH-NUCLEAR PHYSICS AND RADIO ACTIVITY-EXERCISES
  1. Find the amount of energy released when 1 atom of Uranium .(92)U^(235)...

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  2. Which of the following is corect regarding nucleus? (i) The radius o...

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  3. Choose the correct option

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  4. The mass number of a nucleus is equal to

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  5. The mass number of a nucleus is.

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  6. If the nuclear radius of .^27 A1 is 3.6 Fermi, the approximate nuclear...

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  7. Two nuclei have their mass numbers in the ratio of 1:3. The ratio of t...

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  8. The graph of 1n (R/R0) versus 1n A (R = radius of a nucleus and A = it...

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  9. Atomic weight of boron is 10.81 and it has two isotopes .5 B^10 and .5...

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  10. An element A decays into element C by a two-step process : A rarr B ...

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  11. Which of the following is correct regarding nucleus forces?

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  12. Two protons are kept at a separation of 10 nm. Let Fn and Fe be the nu...

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  13. Two nucleons are at a separation of 1 xx 10^-15 m. The net force betwe...

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  14. Size of nucleus is of the order of

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  15. Which of the following is correct regarding binding enegry of nucleus?

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  16. Mass defect of an atom refers to

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  17. Mp denotes the mass of a proton and Mn that of a neutron. A given nucl...

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  18. A nucleus .Z^A X has mass represented by M(A, Z). If Mp and Mp denote ...

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  19. The masses of neutron and proton are 1.0087 a.m.u. and 1.0073 a.m.u. r...

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  20. If M is the mass of a nucleus and A is its mass number, then (M -A)/(M...

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  21. As the mass number A increases, the binding energy per nucleon in a nu...

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