B\(_2\)H\(_6\), H\(_2\)O
Both BeH\(_2\) and MgH\(_2\) are known to form polymeric structures. BeH\(_2\) can adopt a linear polymeric structure due to bridging hydrogen atoms, while MgH\(_2\) forms polymeric networks in its crystal lattice.
The equilibrium constant for decomposition of $ H_2O $ (g) $ H_2O(g) \rightleftharpoons H_2(g) + \frac{1}{2} O_2(g) \quad (\Delta G^\circ = 92.34 \, \text{kJ mol}^{-1}) $ is $ 8.0 \times 10^{-3} $ at 2300 K and total pressure at equilibrium is 1 bar. Under this condition, the degree of dissociation ($ \alpha $) of water is _____ $\times 10^{-2}$ (nearest integer value). [Assume $ \alpha $ is negligible with respect to 1]