Question
The binding energy of deuteron is 2.2 MeV and that of 
is 28 MeV. If two deuterons are fused to form one 
then the energy released is
-
25.8 MeV
-
23.6 MeV
-
19.2 MeV
-
30.2 MeV
Solution
B.
23.6 MeV
The reaction can be written as:
The energy released in the reaction is difference of binding energies of daughter and parent nuclei.
Hence, energy released.
= binding energy of 
- 2 x binding energy of 
= 28 - 2 x 2.2 = 23.6 MeV
