Use the Data Given Below to Construct a Born-Haber Cycle

question 27

Multiple Choice

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. DH°(kJ)
K(s) → K(g) 89
K(g) → K⁺(g) + e⁻ 418
Cl₂(g) → 2 Cl(g) 244
Cl(g) + e⁻ → Cl⁻(g) -349
KCl(s) → K⁺(g) + Cl⁻(g) 717

• A) -1119 kJ
• B) -997 kJ
• C) -437 kJ
• D) +631 kJ
• E) +158 kJ

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