Physics

Problem

Which of the following nuclear reactions is least likely to release energy (i.e., has a negative

Q

-value)? a)

^{2}_{1}\mathrm{H} + ^{3}_{1}\mathrm{H} \rightarrow ^{4}_{2}\mathrm{He} + ^{1}_{0}\mathrm{n}

^{56}_{26}\mathrm{Fe} + ^{56}_{26}\mathrm{Fe} \rightarrow ^{112}_{52}\mathrm{Te}

^{238}_{92}\mathrm{U} \rightarrow ^{144}_{56}\mathrm{Ba} + ^{89}_{36}\mathrm{Kr} + 5\,^{1}_{0}\mathrm{n}

^{12}_{6}\mathrm{C} + ^{12}_{6}\mathrm{C} \rightarrow ^{24}_{12}\mathrm{Mg}