Two identical medium-mass nuclei 40Ca are hypothetically fused to form a single 80Kr nucleus:
40Ca+40Ca⟶80Kr.
Atomic masses (in u) are: 40Ca=39.962591, 80Kr=79.916378.
(a) Calculate Q-value for the fusion event
(b) Energy change per nucleon
(c) Reasoning on natural favourability
(d) Speculation on practical usefulness