Calculate the Lattice Energy for NaCl(s)using a Born-Haber Cycle and the Following

question 82

Multiple Choice

Calculate the lattice energy for NaCl(s) using a Born-Haber cycle and the following information: NaCl(s) → Na⁺(g) + Cl^-(g) ?
Na(s) + 1/2 Cl₂(g) → NaCl(s) -411.0 kJ/mol
Na(s) → Na(g) +107.3 kJ/mol
Na(g) → Na⁺(g) + e^- +495.8 kJ/mol
1/2 Cl₂(g) → Cl(g) +121.7 kJ/mol
Cl(g) + e^- → Cl^-(g) -348.6 kJ/mol

• A)+34.8 kJ/mol
• B)+690.3 kJ/mol
• C)+787.2 kJ/mol
• D)+1512 kJ/mol

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