Biology Forums - Study Force

Given the following information, calculate ΔH° (in kcal mol^-1) for:  CaI₂(s) → Ca⁺²(g) +2 I^-(g)

Process  ΔH° (kcal mol^-1)
Ca(s) → Ca(g)  +178
I₂(g) → 2 I(g)    +36 (per mole I₂)
I₂(s) → I₂(g)    +15
Ca(g) → Ca⁺(g) + e^-  +590
Ca⁺(g) → Ca⁺²(g) + e^{- +1145}
I(g) + e^-→ I^-(g)   -71
Ca(s) + I₂(s) → CaI₂(s)  +534 (per mole CaI₂)  


▸ 1359 kcal mol^-1

▸ 1270 kcal mol^-1

▸ 2356 kcal mol^-1

▸ 1572 kcal mol^-1

▸ 1288 kcal mol^-1

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