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

Question 134

Multiple Choice

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. ΔH°(kJ mol-1)
K(s) → K(g) 89
K(g) → K⁺(g) + e⁻ 418
Cl2(g) → 2Cl(g) 244
Cl(g) + e⁻ → Cl⁻(g) -349
KCl(s) → K⁺(g) + Cl⁻(g) 717


A) -1119 kJ mol-1
B) -997 kJ mol-1
C) -437 kJ mol-1
D) +631 kJ mol-1
E) +158 kJ mol-1

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