Consider the reaction 235 92 U + 1 0 n 148 57 La + 87 35 Br + 1 0 n. Element Ato

Question

Consider the reaction 23592U +10n 14857La +8735Br + 10n. Element      Atomic Mass (u) 23592U 235.043923 10n 1.008665 14857La 147.932236 8735Br 86.92071119
(b) Using values given above, find the total mass of the initialparticles.
1 u

(c) Using the values given above, find the total mass of theparticles after the reaction takes place.
2 u

(d) Subtract the final particle mass from the initial particlemass.
3 u

(e) Convert the answer to part (d) to MeV, obtaining the kineticenergy of the daughter particles, neglecting the kinetic energy ofthe reactants.
4 Mev


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Element      Atomic Mass (u) 23592U 235.043923 10n 1.008665 14857La 147.932236 8735Br 86.92071119
(b) Using values given above, find the total mass of the initialparticles.
1 u

(c) Using the values given above, find the total mass of theparticles after the reaction takes place.
2 u

(d) Subtract the final particle mass from the initial particlemass.
3 u

(e) Convert the answer to part (d) to MeV, obtaining the kineticenergy of the daughter particles, neglecting the kinetic energy ofthe reactants.
4 Mev


Thanks--will rate life saver.
Element      Atomic Mass (u) 23592U 235.043923 10n 1.008665 14857La 147.932236 8735Br 86.92071119

Explanation / Answer

   1 ) Total mass of the initial particles                 mass of uranium + mass of neutron = 235.04392 +1.008665                                                             Mi         =   236.052585   u    2 ) total mass of the particles after thereaction takes place                mass of La + mass of Br + mass of neutron = 147.932236 + 86.92071119 + 1.008665                                                                              Mf        = 235.86161219   u     3 ) M   =  Mi    -  Mf    =   236.052585 -    235.86161219                                  =   0.19097281    u   4)         1  u   = 931.49 Mev / c2               M =    0.19097281    u                        =   0.19097281    * 931.49 Mev /c2                      =   19.76 * 10-16   MeV                                                  =   19.76 * 10-16   MeV                            

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