The bond dissociation energies for ${\text{Cl}}_{\text{2}}{\text{,\hspace{0.17em}I}}_{\text{2}}\text{,\hspace{0.17em}and\hspace{0.17em}ICl}$ are 242.3, 151 and 211.3 kJ/mol respectively.

The enthalpy of sublimation of iodine is 62.8 kJ/mol. What is the standard enthalpy of formation

of  ${\text{ICl}}_{\left(g\right)}$?