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

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

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}

(b)

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

(c)

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

(d)

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