Question

Use the Born-Haber cycle, and the following data to calculate the bond dissociation energy of F2....

Use the Born-Haber cycle, and the following data to calculate the bond dissociation energy of F2.

Na(g) → Na+(g) + e-(g)    ΔrH = IE1 = 500 kJ mol-1

Na(s) → Na(g)    ΔsubH = 107 kJ mol-1

F-(g) → F(g) + e-(g)    ΔrH = EA1 = 329 kJ mol-1

Na(s) + 1/2 F2(g) → NaF(s)    ΔfH = -569 kJ mol-1

Na+(g) + F-(g) → NaF(s)    ΔlattH = -928 kJ mol-1

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