The kinetics of ClO formation in the flash photolysis of chlorine–oxygen mixtures | Zendy

Ashford R. D. | Zendy; Basco N. | Zendy; Hunt J. E. | Zendy

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The kinetics of ClO formation in the flash photolysis of chlorine–oxygen mixtures

Author(s) -

Ashford R. D.,

Basco N.,

Hunt J. E.

Publication year - 1978

Publication title -

international journal of chemical kinetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 68

eISSN - 1097-4601

pISSN - 0538-8066

DOI - 10.1002/kin.550101206

Subject(s) - chemistry , flash photolysis , chlorine , kinetics , oxygen , photodissociation , radical , reaction rate constant , kinetic energy , analytical chemistry (journal) , photochemistry , organic chemistry , physics , quantum mechanics

The production of ClOO and ClO radicals following the flash photolysis of chlorine + oxygen mixtures has been studied. For the mechanismthe following kinetic parameters were measured: k 3 K = 1.3 × 10 10 l 2 /mol 2 ·sec; k 2 / k 3 = 17; and k 3 /ϵ(ClOO; 250 nm) = 9.7 × 10 5 cm/sec. Then k 3 = 5.9 × 10 9 l/mol·sec, k 2 = 1.0 × 10 11 l/mol·sec, and ϵ(ClOO; 250 nm) = 6.1 × 10 3 l/mol·cm. From limits established for the equilibrium constant K , Δ H ° f (ClOO) = 94 ± 2 kJ/mol.

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