Atoms & Nuclei

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229 of 239

Question 229 of 239

Consider the nuclear fission, Ne20→2He4+C12{Ne}^{20}\rightarrow 2{He}^{4}+{C}^{12}. Given that the binding energy/nucleon of Ne20,He4{Ne}^{20},{He}^{4}andC12{C}^{12} are 8.03MeV,7.86MeV8.03 MeV,7.86MeV, respectively. Identify the correct statement:

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Answer: (B) Energy of 9.72MeV9.72MeV has to be supplied.

Q=Ef−EiQ={E}_{f}-{E}_{i}
=(12×7.86+4×7.07+4×7.07)−(20×8.03)=\left(12\times 7.86+4\times 7.07+4\times 7.07\right)-(20\times 8.03)
Q=−9.72MeVQ=-9.72 MeV

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