Use the Born-Haber Cycle to Calculate the Lattice Energy of MgO

question 96

Multiple Choice

Use the Born-Haber cycle to calculate the lattice energy of MgO (s) given the following data: $\Delta$ H(sublimation) Mg = 130 kJ/mol
I₁ (Mg) = 738.1 kJ/mol
I₂ (Mg) = 1450 kJ/mol
Bond energy (O=O) = 498.7 kJ/mol
EA (O) = 141 kJ/mol
EA (O^-) = -780 kJ/mol
$\Delta{H}^{\circ}_f$ (MgO(s) ) = -601.8 kJ/mol

• A) 2200 kJ/mol
• B) 2800 kJ/mol
• C) 3200 kJ/mol
• D) 3800 kJ/mol
• E) 4100 kJ/mol

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