Which of the following nuclear reactions is expected to absorb energy rather than…

PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear physics

Problem

Which of the following nuclear reactions is expected to absorb energy rather than release it, based on the binding-energy-per-nucleon curve? (a)

^{235}_{92}\text{U}\;\rightarrow\;^{140}_{54}\text{Xe}+^{92}_{38}\text{Sr}+3n

(b)

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

(c)

^{56}_{26}\text{Fe}\;\rightarrow\;^{28}_{14}\text{Si}+^{28}_{14}\text{Si}

(d)

^{2}_{1}\text{H}+^{2}_{1}\text{H}\;\rightarrow\;^{4}_{2}\text{He}