Given the following information, calculate ΔH° (in kcal mol–1) for: NaI(s) → Na+(g) + I–(g)
Process ΔH° (kcal mol–1)
Na(s) → Na(g) +26
I2(g) → 2I(g) +36 (per mole I2)
I2(s) → I2(g) +15
Na(g) → Na+(g) + e- +118
I(g) + e- → I-(g) –71
2Na(s) + I2(s) → 2NaI(s) –699 (per mole NaI)