Suppose, we think of fission of a `""_(26)^(56)Fe ` nucleus into two equal fragments `""_(13)^(28)Al`. Is the fission energetically possible? Argue by working out Q of the process. Given `m (""_(26)^(56)Fe) = 55.93494 u and m(""_(13)^(28)Al) = 27.98191 u`.

Explanation

`Q = [m ""_(26)^(56)Fe - 2m(""_(13)^(28)Al)c^2`
`Q = [m ""_(26)^(56)Fe - 2m (""_(13)^(28)Al)]c^2`
`=[55.93494 - 2 xx 27.98191] 931`
`= 26.88 MeV` (not possible)