Physics

Problem

Consider the fusion reaction

^{2}\!\mathrm{H}+{}^{3}\!\mathrm{H} \rightarrow {}^{4}\!\mathrm{He}+n

. The atomic masses are:

^{2}\!\mathrm{H}=2.014\,102\,u

^{3}\!\mathrm{H}=3.016\,049\,u

^{4}\!\mathrm{He}=4.002\,603\,u

n=1.008\,665\,u

. Given

1\,u=931.5\,\text{MeV}/c^{2}

, the energy released per fusion reaction is closest to a) 20.2 MeV b) 17.6 MeV c) 14.1 MeV d) 11.3 MeV