Mass numbers of the elements A, B, C, and D are 30, 60, 90, and 120 respectively. Their specific binding energies are 5 MeV, 8.5 MeV, 8 MeV, and 7 MeV respectively. Then, in which of the following reactions is energy released? (a) $D → 2 B $ (b)$C → B + A $ (c)$B → 2 A $

Question

Mass numbers of the elements A, B, C, and D are 30, 60, 90, and 120 respectively. Their specific binding energies are 5 MeV, 8.5 MeV, 8 MeV, and 7 MeV respectively. Then, in which of the following reactions is energy released?

(a) $D → 2 B $

(b)$C → B + A $

(c)$B → 2 A $

(a) $(D \rightarrow 2B)$

(b) $(C \rightarrow B + A)$

In (a), (b), and (c)

Solution

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