The binding energy per nucleon of $Li$and $He$ nuclei are $5.60 MeV$ and $7.06 MeV$ respectively. In the nuclear reaction given here the value of energy $Q$released is_______$MeV$. 

${ }_3^7\mathrm{Li}{+}_1^1\mathrm{H}{\to }_2^4\mathrm{He}{+}_2^4\mathrm{He}+\mathrm{Q}$