For the gas phase decomposition of nitrosyl chloride at 400 K 2 NOCI 2 NO + Cl2 the average rate of disappearance of NOCI over the time period from t = 0 s to t = 67979 s is found to be 1.59x10-7 M s-1. The average rate of formation of Cl2 over the same time period is Ms1.

For the gas phase decomposition of hydrogen peroxide at 400 °C 2 H2O2 2 H2O + O2 the following data have been obtained: [H,O2], M 9.35x10-2 3.54x10-2 2.18×10-2 1.56x10-2 time, s 27.0 54.0 81.0 The average rate of disappearance of H,O2 over the time period from t = 27.0 s to t = 54.0 s is |Ms-!.

For the decomposition of ammonia on a tungsten surface at 1100 °C 2 NH3N₂ + 3 H₂ the average rate of disappearance of NH3 over the time period from t = 0 s to t = 1452 s is found to be 3.40 × 10-6 M.s ¹. S The average rate of formation of N₂ over the same time period is M.s-¹ 1

For the gas phase decomposition of phosphine at 120 °C 4 PH3 (9) → P4 (9)+ 6 H₂ (9) the following data have been obtained: [PH3], M time, s 0 The average rate of disappearance of PH3 over the time period from t = 0s to t = 23.0 s is 0.0644 0.0426 0.0281 0.0186 23.0 46.0 69.0 M/s.