Chemistry - Chemical Equilibrium Question with Solution | TestHub

For the equilibrium, ${\mathrm{SrCl}}_2\cdot 6{\mathrm{H}}_2\mathrm{O}(s)\rightleftharpoons {\mathrm{SrCl}}_2\cdot 2{\mathrm{H}}_2\mathrm{O}(s)+4{\mathrm{H}}_2\mathrm{O}(g)$ the equilibrium constant $K_p=16\times 10^{-12}{\mathrm{atm}}^4$ at $1^{\circ }\mathrm{C}$. If one litre of air saturated with water vapour at $1^{\circ }\mathrm{C}$ is exposed to a large quantity of ${\mathrm{SrCl}}_2\cdot 2{\mathrm{H}}_2\mathrm{O}(s)$, what weight in mg of water vapour will be absorbed? Saturated vapour pressure of water at $1^{\circ }\mathrm{C}=7.6$ torr . (Given $0^{\circ }\mathrm{C}\equiv 273\mathrm{K}$ )