The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. Energy released in the process of fusion is due to mass defect. It is also called `Q`-value. `Q = Delta mc^(2), Delta m =` mass defect.
In a nuclear reaction
`._(1)H^(2) + ._(1)H^(2) rarr ._(2)He^(3) + ._(0)n^(1)`
If the masses of ._(1)H^(2)` and `._(2)He^(3)` are 2.014741 and 3.016977 amu, respectively. then the `Q`-value of the reaction is nearly.
A. `0.00352 MeV`
B. `3.27 MeV`
C. `0.82 MeV`
D. `2.45 MeV`
