The enthalpy change for the following reaction is 35.6 kJ.
I2(g) + Cl2(g) ---> 2ICl(g)
a.) To analyze the reaction, first draw Lewis structures for all
reactant and product molecules.
b.) Estimate the Cl-Cl bond energy in
Cl2(g), using tabulated bond energies
(linked above) for the remaining bonds.
Cl-Cl bond energy = 243 kJ/mol