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CBSE Class 12-science Answered

Draw the curve showing variation of binding energy/nucleon with mass number of different nuclei. Briefly state how nuclear fusion and nuclear fission can be explained on the basis of this graph.
Asked by Topperlearning User | 28 May, 2015, 10:38: AM
answered-by-expert Expert Answer

Binding energy per nucleon vs Mass Number


Explanation of Nuclear Fission:

When we move from the heavy nuclei region to the middle region of the plot, we find that there will be a gain in the overall binding energy and hence release of energy. This indicates that energy can be released when a heavy nucleus breaks into two roughly equal fragments. This process is called Nucler Fission.

 

Explanation of Nuclear Fusion:

When we move from lighter nuclei to heavier nuclei, we again find that there will be a gain in  the overall binding energy and hence release of energy. This indicates that energy can be released when two or more lighter nuclei fuse together to form a heavy nucleus. This process is called Nuclear Fusion.

Answered by | 28 May, 2015, 12:38: PM
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