Abstract
Reaction rate constants for the reaction of n-dodecane with hydroxyl radicals were measured as a function of temperature between 283 and 303 K, using the relative rate method in the CESAM chamber (French acronym for "experimental multiphasic atmospheric simulation chamber"). The rate constants obtained at 283, 293, and 303 K are (1.27 ± 0.31) × 10-11, (1.33 ± 0.34) × 10-11, and (1.27 ± 0.40) × 10-11 cm3 molecule-1 s-1, respectively. Rate constants measured were in excellent agreement with the few available data in the literature over the studied temperature range (283-340 K). Rate constants estimated by the structure-activity relationship and transition state theory methods agreed with our experimental data within 14%. From these data combined with previous literature measurement, the following Arrhenius expression, kDDC+OH = (9.77 ± 6.19) × 10-11 × exp[(-595 ± 5580)/T] cm3 molecule-1 s-1, was found to be valid over a temperature range (283-340 K) of the tropospheric interest.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.