Born-Haber cycles were used to obtain the first reliable values for electron affinity by
Chapter 9, Problem 9.33(choose chapter or problem)
Born-Haber cycles were used to obtain the first reliable values for electron affinity by considering the EA value as the unknown and using a theoretically calculated value for the lattice energy. Use a Born-Haber cycle for KF and the following values to calculate a value for the electron affinity of fluorine: K(s) K(g) DH 8 5 90 kJ K(g) K1(g) 1 e2 DH 8 5 419 kJ F2(g) 2F(g) DH 8 5 159 kJ K(s) 1 1 2F2(g) KF(s) DH 8 5 2569 kJ K1(g) 1 F2(g) KF(s) DH 8 5 2821 kJ
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