Question

# The amount of energy released in the fusion of 1H2 to form a 2He4 nucleus will be :[Binding energy per nucleon of 1H2=1.1 MeV and 2He4=7 MeV]

A
8.1 MeV
B
5.9 MeV
C
23.6 MeV
D
2 MeV
Solution
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#### Nuclear reaction: 2 1H2→ 2He4 Energy released = Binding energy of products − Binding energy of reactants. Total Binding energy = nucleons x binding energy per nucleon4×7−2×2×1.1=23.6 MeV

3
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