Write equilibrium constants of following reactions.
(1)`2PCl_(3(g)) + O_(2(g)) hArr 2POCl_(3(g))`
(2)`2SO_(3(g)) hArr 2SO_(2(g)) + O_(2(g))`
(3) `H_2O_((g)) + Cl_2O_((g)) hArr 2HOCl_((g))`
(4) `CuSO_(4(s)) + 5H_2O_((s)) hArr CuSO_(4(s)) + 5H_2O_((g))`

Explanation

(1)`K_c=[POCl_3]^2/([PCl_3]^2[O_2])`
(2)`K_c=([SO_2]^2[O_2])/([SO_3]^2)`
(3)`K_c=[HOCl]^2/([H_2O][Cl_2O])`
(4)`K_c=[H_2O]^5`