Calculate the Q-values of the fusion reaction
``^4(He)+`^4He=`^8(Be).`
In such a fusion energetically favourable? Atomic mass of ``^8(Be)` is 8.0053u and that of ``^4(He)`is 4.0026 u.

Answer

A, C

Explanation

Required value
`=(2 xx 4.0026 - 8.0053)uC^2`
`=0.0001 xx 931 (MeV)/(C^2) xx C^2`
`=0.0001 xx 931 xx 10^6 eV`
`=93.1 KeV` .