Exam code: 9PH0
The diagram shows binding energy per nucleon against nucleon number for atomic nuclei.
Which line of the table correctly identifies the process that would increase stability for nuclei in the positions indicated by X and Y?
| X | Y |
A | nuclear fission | nuclear fission |
B | nuclear fission | nuclear fusion |
C | nuclear fusion | nuclear fission |
D | nuclear fusion | nuclear fusion |
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In both nuclear fission and nuclear fusion there are changes in the binding energy per nucleon. This releases energy.
Which row of the table correctly shows the change in binding energy per nucleon for both processes?
| Nuclear fission | Nuclear fusion |
A | decrease | decrease |
B | decrease | increase |
C | increase | decrease |
D | increase | increase |
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The diagram shows how binding energy per nucleon varies with nucleon number for a range of nuclides.
Which of the following cannot be deduced from the graph?
Low mass nuclei release energy during fusion.
High mass nuclei release energy during fission.
Fission releases less energy than fusion.
is the most stable nuclide.
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A proton has a mass of 1.67 × 10−27 kg.
Which of the following shows the conversion of this mass to GeV/c2?
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