Analysis of the unimolecular reaction N2O5 + M ⇌ NO2 + NO3 + M

Malko, M. W.; Troe, J.

doi:10.1002/kin.550140407

Cited by 57 publications

(24 citation statements)

References 20 publications

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“…All of these combined probably preclude a more detailed Fc analysis. It should be noted though that the values deduced here are in agreement with a theoretical estimate of Fc = 0.45 f 0.11 of Sander et al 1331 as well as with a typical temperature dependence of AFc E 0.2 between 220 and 520 K [34].…”

Section: Temperature Dependencesupporting

confidence: 93%

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)

Handwerk

Zellner

1984

Ber Bunsenges Phys Chem

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Rate constants for the recombination reaction (1) ClO + NO2 (+ N2) → ClONO2 (+ N2) have been measured in the pressure range 23 – 1040 mbar and at temperatures of 264, 298 and 343 K using flash photolysis to generate ClO radicals and time dependent UV absorption in the A‐X system as their monitor. k1, is found to show a strong pressure dependence with an onset to “fall‐off” at pressures above ∼ 50 mbar. The “fall‐off” behaviour is interpreted in terms of complete and symmetrical Kassel integrals and is found to be in agreement with the accepted low pressure limit as well as with a theoretical estimate of the high pressure limiting rate constant, k1∞ = 1.2 · 10−11 cm3/s.

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Section: Temperature Dependencesupporting

confidence: 93%

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)

Handwerk

Zellner

1984

Ber Bunsenges Phys Chem

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“…(6.7). A practical application has been demonstrated earlier [23] (for the N 2 0 s + NO2 + NO, system). With Eqs.…”

Section: General Broadening Factorsmentioning

confidence: 97%

Theory of Thermal Unimolecular Reactions in the Fall‐off Range. II. Weak Collision Rate Constants

Gilbert

Luther

Troe

1983

Ber Bunsenges Phys Chem

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517

360

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E5lEnT / K FLH, Eq. (2.7), and a strong collision broadening factor Fsc, Eq. (4.1). The detailed dependence of the broadening factor Fsc (ko/k,) on the reduced pressure ko/k, has been expressed by Eq. (6.1) for sufficiently narrow fall-off curves at low temperatures T(where 1 L F:Zt 1 0.4), by Eqs. (6.2) and (6.4) for broader fall-off curves at higher T (where 1 1 FZZ, L 0.2), or by Eqs. (6.3) -(6.6) for still higher T and/or better precisions. The amplitude F:Zt of the broadening factor has been represented by Eqs. (5.1)-(5.8).Concluding this work we demonstrate the results from Eqs.(5.1) -(5.5) and (6.3) -(6.6) by a comparison with RRKM calculations, for various examples from Table l, in Figs. 7 and 8. The agreement in most cases is quite satisfactory. For better precision, detailed statistical calculations are required. It should be finally noted that the even simpler empirical representation of the temperature dependence of the center broadening factor in the form of Eq. (5.9) in F,,,, should not only include F:$ but also the weak collision contribution. Then, the agreement between Eq. (5.9) and results from Fig. 8 generally still improves. This will be demonstrated in part I1 [3]. ReaktionskinetikThe master equation of thermal unimolecular reactions in the fall-off range has been solved for a number of representative molecular systems. (ko/k,) are derived and represented empirically. Weak collision efficiencies / 3, for the low pressure range are calculated for very high temperatures. Combined with earlier representations (part I) of strong collision broadening factors Fsc (ko/km), compact empirical expressions for the rate coefficient in the full fall-off range are proposed. These expressions are useful for data representation and modeling of complex reaction systems which involve isomerization, dissociation and recombination reactions. Weak collision broadening factors Fwc

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“…Since the equilibrium (-14, 14) is reached within minutes at conditions of the lower troposphere [MaIko and Troe 1982], the rate limiting steps for the conversion of NOx to HN0 3 can either be reaction (13) or reaction (15) depending on atmospheric conditions, which will be discussed in the following:…”

Section: Oil )mentioning

confidence: 99%

Chemistry of Multiphase Atmospheric Systems

Jaeschke¹

1986

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Analysis of the unimolecular reaction N₂O₅ + M ⇌ NO₂ + NO₃ + M

Cited by 57 publications

References 20 publications

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)

Theory of Thermal Unimolecular Reactions in the Fall‐off Range. II. Weak Collision Rate Constants

Chemistry of Multiphase Atmospheric Systems

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Analysis of the unimolecular reaction N2O5 + M ⇌ NO2 + NO3 + M

Cited by 57 publications

References 20 publications

Pressure and Temperature Dependence of the Reaction ClO + NO2 (+ N2) → ClONO2 (+ N2)

Pressure and Temperature Dependence of the Reaction ClO + NO2 (+ N2) → ClONO2 (+ N2)

Theory of Thermal Unimolecular Reactions in the Fall‐off Range. II. Weak Collision Rate Constants

Chemistry of Multiphase Atmospheric Systems

Contact Info

Product

Resources

About

Analysis of the unimolecular reaction N₂O₅ + M ⇌ NO₂ + NO₃ + M

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)

Pressure and Temperature Dependence of the Reaction ClO + NO₂ (+ N₂) → ClONO₂ (+ N₂)