Thermodynamics

\(\mathrm{A}_{2}+\mathrm{B}_{2} \rightarrow 2 \mathrm{AB} . \Delta H_{f}^{0}=-200 \mathrm{~kJ} \mathrm{~mol}^{-1}\)

\(\mathrm{AB}, \mathrm{A}_{2}\) and \(\mathrm{B}_{2}\) are diatomic molecules. If the bond enthalpies of \(\mathrm{A}_{2}, \mathrm{~B}_{2}\) and \(\mathrm{AB}\) are in the ratio \(1: 0.5: 1\), then the bond enthalpy of \(\mathrm{A}_{2}\) is ____________ \(\mathrm{kJ} ~\mathrm{mol}^{-1}\) (Nearest integer)