Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated
below:
21Cl2(g) ⟶\buildrel21ΔdissHΘ Cl(g) ⟶\buildrelΔegHΘ Cl−(g) ⟶\buildrelΔHydHΘ Cl−(aq)
(Using the data,
ΔdissHCl2Θ = 240 kJ/mol,
ΔegHClΘ = -349 kJ/mol,
ΔhydHCl−Θ = - 381 kJ/mol) will be :