| S/N | Temperature, T (K) | T−1 × 10−4 (K−1) | k × 10-5 | ln k |
| 1 | 823 | 12.15 | 1.7553 | −10.950 |
| 2 | 873 | 11.45 | 3.0511 | −10.397 |
| 3 | 923 | 10.83 | 4.0110 | −10.120 |
| 4 | 1023 | 9.78 | 5.4557 | −09.816 |