Lithium iodide (LiI) has a heat of formation of -272 kJ/mol and a lattice energy of -753 kJ/mol. The ionization energy of Li(g) is 520 kJ/mol, the bond energy of I2(g) is 151 kJ/mol, and the electron affinity of I(g) is -295 kJ/mol. Use this data to determine the heat of sublimation for Li(s).