(Solved): 1. Write the equilibrium expression for following reactions. In each case indicate whether the equi ...

1. Write the equilibrium expression for following reactions. In each case indicate whether the equilibrium is Homogeneous or Heterogeneous \[ 2 \mathrm{CH}_{3} \mathrm{Cl}(g)+\mathrm{Cl}_{2}(g) \rightleftharpoons 2 \mathrm{CH}_{2} \mathrm{Cl}_{2}(g)+\mathrm{H}_{2}(g) \] \[ \mathrm{P}_{4}(s)+5 \mathrm{O}_{2}(g) \rightleftharpoons \mathrm{P}_{4} \mathrm{O}_{10}(s) \] \[ \mathrm{CH}_{4}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{~S}(\mathrm{~g}) \rightleftharpoons \mathrm{CS}_{2}(\mathrm{~g})+4 \mathrm{H}_{2}(\mathrm{~g}) \] \[ \mathrm{Al}(\mathrm{OH})_{3}(5) \rightleftharpoons \mathrm{Al}^{3+}(\mathrm{aq})+3 \mathrm{OH}^{-}(\mathrm{aq}) \]