Construct a Born-Haber cycle and calculate the lattice energy of CaC2 ( s ). Note that this solid contains the diatomic ion C 2 2- Useful Information...

Construct a Born-Haber cycle and calculate the lattice energy of CaC2 (s). Note that this solid contains the diatomic ion C22-

Useful Information:

∆H°f (CaC2(s)) = -60 kJ/mol

∆Hsub (Ca (s)) = +178 kJ/mol

∆Hsub (C (s)) = +717 kJ/mol

Bond dissociation energy of C2 (g) = +614 kJ/mol

First ionization energy of Ca (g) = +590 kJ/mol

Second ionization energy of Ca (g) = +1143 kJ/mol

First electron affinity of C2 (g) = -315 kJ/mol

Second electron affinity of C2 (g) = +410 kJ/mol