Fig. 3: Plots of kobs vs. [HCHO]0 at six different temperatures.

The open symbols represent experimental data and the solid lines represent linear fitting curves. The data correspond to experiment sets 7, 8, 10, 12, 14, and 15 listed in Supplementary Table 1 with total pressure PT = 21.3–21.4 Torr. The error bars represent the error of each kobs obtained by fitting each CH2OO temporal absorbance profile and the uncertainty of the determined [HCHO]0.