Table 2. Reaction Rate and Estimated Arrhenius Parameters of the TaHeRL–Hydroxylamine (0.5 M) Reaction at Various Temperatures in the Absence and Presence of Light.
| dark | ||||||
|---|---|---|---|---|---|---|
| temperature (°C) | k1 (s–1) | Ea1d (kcal·mol–1) | A1d (s–1) | k2 (s–1) | Ea2d (kcal·mol–1) | A2d (s–1) |
| 20 | (3.2 ± 0.01) × 10–3 | 17.98 ± 0.1 | (8.1 ± 0.12) × 1010 | (3.96 ± 0.1) × 10–5 | 20.08 ± 0.1 | (3.6 ± 0.12) × 1010 |
| 25 | (5.1 ± 0.09) × 10–3 | (7.5 ± 0.07) × 10–5 | ||||
| 30 | (8.5 ± 0.08) × 10–3 | (1.1 ± 0.08) × 10–4 | ||||
| 35 | (1.27 ± 0.1) × 10–2 | (1.9 ± 0.1) × 10–4 | ||||
| 40 | (2.4 ± 0.1) × 10–2 | (3.90 ± 0.1) × 10–4 | ||||
| light | ||||||
|---|---|---|---|---|---|---|
| temperature (°C) | k1 (s–1) | Ea1l (kcal·mol–1) | A1l (s–1) | k2 (s–1) | Ea2l (kcal·mol–1) | A2l (s–1) |
| 20 | (4.4 ± 0.07) × 10–3 | 17.66 ± 0.08 | (8.0 ± 0.1) × 1010 | (1.5 ± 0.07) × 10–4 | 15.12 ± 0.08 | (2.6 ± 0.1) × 107 |
| 25 | (1.0 ± 0.06) × 10–2 | (1.98 ± 0.06) × 10–4 | ||||
| 30 | (1.4 ± 0.06) × 10–2 | (3.57 ± 0.06) × 10–4 | ||||
| 35 | (2.7 ± 0.08) × 10–2 | (4.2 ± 0.08) × 10–4 | ||||
| 40 | (3.1 ± 0.09) × 10–2 | (8.23 ± 0.09) × 10–4 | ||||