H2O2 Dissociation - Heat, Free Energy and Equilibrium Constant
H2O2 Dissociation - Heat, Free Energy and Equilibrium Constant
| Nonionic | Δ Ho | Δ Fo (kcal/mole) |
|---|---|---|
| H2O2 (g) = H2O (g) + O(g) | + 33.90 | + 25.60 |
| H2O2 (g) = 2H (g) + O2 (g) | + 136.72 | + 122.41 |
| H2O2 (g) = H2 (g) + 2O (g) | + 150.86 | + 135.23 |
| H2O2 (g) = 2H (g) + 2O (g) | + 255.04 | + 232.39 |
| H2O2 (g) = H (g) + O2H (g) | <+ 90./td> | |
| O2H (g) = H (g) + O2 (g) | + 46. |
| Ionic | Δ Ho | Δ Fo (kcal/mole) |
|---|---|---|
| H2O2 (aq) = H+ + O2H– | + 8.2 | + 15.89 |
At 25 °C, K = [(H+) (O2H–)] / (H2O2) = 2.24 x 10-12 the free energy of formation for O2H- is –15.23 kcal/mole.
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