1.

Construct a Born-Haber cycle and use it to calculate the first electron affinity of chlorine. DeltaH_(atom(CI))= +122 kJ mol^(-1) "" DeltaH_(atom(Mg))=+148 kJ mol^(-1) DeltaH_("1st ionisation energy" (Mg))=+738 KJ mol^(-1) "" DeltaH_(2nd " ionisation cnergy"(MgCI_(2))= +1451 kJ mol^(-1) DeltaH _("lattice energy "(MgCI_(2))= -2526 kJ mol^(-1) "" DeltaH_(2nd " formation "(MgCI_(2)) =-641 kJ mol^(-1)

Answer»

SOLUTION :-348 kJ/mol


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