The above is a plot of binding energy per nucleon Eb, against the nuclear mass M; A, B, C, D, E, F correspond to different nuclei. Consider four reactions;
[AIEEE-2009]
(i) A + B → C + E (ii) C → A + B + E
(iii) D + E → F + E (iv) F → D + E + E
Where ε is the energy released? In which reactions is ε positive?