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Lifetime Mechanisms in Chemical Reactions - A Comprehensive Study

Explore the lifetimes and mechanisms involved in photo dissociation, 2-body collisions, radiative association, grain sticking, grain catalysis, and 3-body collisions. Analyze the impact of these processes on the formation and decay of AB molecules.

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Lifetime Mechanisms in Chemical Reactions - A Comprehensive Study

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  1. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  2. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  3. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  4. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  5. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  6. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain catalysis tGC = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

  7. Lifetimes (in yrs) Photo dissociation tPD = 103 AB + h A + B 2-body collisions t2B = 103/n A + B  AB*  A + B Radiative association tRA = 109/n yrs A + B  AB*  AB + h Grain sticking tGS = 109/n yrs A + B + Gr  AB + Gr 3 - body collision t3B = 1023/ n2 A + B + M  MAB  AB + M t(BIG U) = 1010 yrs n number of atoms or molecules per cm3 Harry Kroto 2004

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