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Q.43

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1237

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Short Answer

Use the graph of binding energy to estimate the total energy released if a nucleus with mass number 240 fissions into two nuclei with mass number 120.

The plot binding energy per nucleon verses mass number is given as the figure 42.6 in the text book. In this plot, the corresponding binding energy per nucleon for mass number 240 approximately is 7.8 MeV. The corresponding binding energy per nucleon for mass number 120 approximately is 8.5 MeV

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Step by Step Solution

 The total binding energy of nucleus of mass number 240  is, 

The amount of energy released in the nuclear reaction involves when a nucleus of mass number 240 decays into two nucleus of each has mass number 120 is,

=168 MeV

Therefore, the amount of energy released in the nuclear reaction involves when a nucleus of mass number 240 decays into two nucleus of each has mass number 120 approximately is 168 MeV

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