Pyrolytic production of Se ( 3  P ) from carbon diselenide. I. Equilibrium | Zendy

Marquart J. R. | Zendy; Belford R. L. | Zendy; Fraenkel H. A. | Zendy

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Pyrolytic production of Se ( 3 P ) from carbon diselenide. I. Equilibrium

Author(s) -

Marquart J. R.,

Belford R. L.,

Fraenkel H. A.

Publication year - 1977

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.550090415

Subject(s) - chemistry , diselenide , dissociation (chemistry) , pyrolytic carbon , photoionization , pyrolysis , analytical chemistry (journal) , thermodynamics , radiochemistry , organic chemistry , ionization , selenium , ion , physics

Thermodynamic characteristics of the dissociation of carbon diselenide are examined. Results of a shock‐tube study of CSe 2 pyrolysis are combined with previously unreported photoionization spectroscopy data on CSe 2 and with a critical examination of the available literature on Se( g ), Se 2 ( g ), CSe( g ), CSe 2 ( g ), and CSe 2 ( t ). Based on the best currently available information, recommendations are made for the values of enthalpies, entropies, heat capacities, and derived functions. In particular, the most likely value for Δ H 0 (CSe 2 ( g ) → CSe( g ) + Se( g , 3 P )) is +83 kcal/mol, and for K p at 2000°K it is 0.018 atm.

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