Enthalpies of formation of $CC{l}_{4\left(g\right)},H_2{O}_{\left(g\right)},C{O}_{2\left(g\right)}$  and  $HC{l}_{\left(g\right)}$are -105, -242, -394 and 
-92 KJ   $mo{l}^{-1}$  respectively. The magnitude of enthalpy of the reaction given below is__KJ/mol (nearest integer)
 $CC{l}_{4\left(g\right)}+2H_2{O}_{\left(g\right)}\stackrel{ }{\to }C{O}_{2\left(g\right)}+4HC{l}_{\left(g\right)}$