Question

State two differences between the process of nuclear fission or fusion.

Answer 1

Nuclear fission	Nuclear fusion
When bombarded with neutrons on a heavy nucleus with neutrons, it splits in two nearly equal fragments.	Two light nuclei combine to form a heavy nucleus at very high temperature and high pressure.
Reaction is possible at ordinary temperature and ordinary pressure.	Reaction is possible only at a very high temperature $\left({10}^{7}K\right)$ and pressure.
For a given mass, the energy released in the fission process is less than that in the fusion process.	For a given mass, the energy released in the fusion process is much more than that in the fission process.