... Stoichiometry (2) requires Pf/P0 = 2, where Pf and P0 are the final and initial pressures, respectively. The JOURNAL OF PHYSICAL ORGANIC CHEMISTRY J. Phys. Org. Chem. 12, 19–23 (1999) ... 1. I. August, I. McEwen and R. Taylor. J. Chem. Soc., Perkin Trans. ...