Pure ammonia is placed in a vessel at a temperature where its dissociation constant `(alpha)` is appreciable. At equilibrium,

Pure ammonia is placed in a vessel at a temperature where its degree of dissociation (alpha) is appreciable. At equilibrium 2NH_(3) = N_(2) + 3H_(2) .

Calculate the dissociation constant of water at room temperature

At certain temperature 50% of HI is dissociated into H_(2) and I_(2) the equilibrium constant is