What is the lattice energy of LiI? Given the information below.

AI Thread Summary
The lattice energy of lithium iodide (LiI) can be calculated using the provided thermodynamic data, including the heat of formation, heat of sublimation for lithium and iodine, ionization energy, bond dissociation energy, and electron affinity. The heat of formation for LiI is -270 kJ/mol, indicating its stability. The heat of sublimation for Li is 159.40 kJ/mol, and for I2, it is 48.30 kJ/mol, which are essential for determining the energy required to form gaseous ions. Additionally, the ionization energy for Li and the electron affinity for I are crucial for calculating the lattice energy. This information collectively aids in understanding the energy dynamics involved in the formation of LiI.
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Homework Statement



What is the lattice energy of LiI? Given the information below.

Heat of formation for LiI = -270 kJ/mol

Heat of sublimation for Li = 159.40 kJ/mol

Ionization energy for Li = 520 kJ/mol

Bond dissociation energy for I2 = 149 kJ/mol

Electron affinity for I = - 295 kJ/mol

Heat of sublimation for I2 = 48.30 kJ/mol

Homework Equations





The Attempt at a Solution



Could someone give me a hint?
 
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This should help tremendously:

Code: 
http://answers.yahoo.com/question/index?qid=20080121195206AA88t5P
 

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