Calculate and compare the energy released by

Calculate and compare the energy released by
(i) fusion of 1 kg of hydrogen deep within sun and
(ii) the fission of 1 kg of ${}^{238}U$ in a fission reactor.

(i) In sun, four hydrogen nuclei fuse to form a helium nucleus with release of 26 MeV energy.

Thus, the energy released in fusion is 8 times the energy released in fission.