Arkansas State University Department of Chemistry and Physics

CHEM4204 Homework 5

Lattice Energy and Born-Haber cycle

Calculate the  Heat of Formation for CsBr from the Born-Haber cycle: DH_I.E. = 375.7,
DH_E.A. = 324.6, DH_dis = 190.2, DH_vap = 278  kJ/mol.  Cs-Br distance, 364 pm.  CsCl
structure.  Draw the Born-Haber cycle and label all parts.

Due Wednesday, March 26, 2008.