Consider a hypothetical ionic compound AB (comprised of A+ and B- ions).

Given the following enthalpy data and using a Born-Haber cycle calculation, predict ΔHlattice in kJ mol-1.

A(s) + B(s) → AB(s) ΔrH = -430 kJ mol-1

A(s) → A(g) ΔrH = 111 kJ mol-1

B(s) → B(g) ΔrH = 100 kJ mol-1

First ionization energy of A(g) = 507 kJ mol-1

Electron affinity enthalpy of B(g) (exothermic) = -343 kJ mol-1