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Publisher Information - 17.11.2008

Physical Properties Sources Index (PPSI)

Pre-Exponential Factor
Home > Chemical Kinetics > Pre-Exponential Factor
Pre-Exponential Factor
Definition:Coefficient A in the Arrhenius equation for the rate constant: k = A e^-(Ea/RT), where k represents the rate coefficient, Ea the activation energy, R the gas constant and T the temperature. According to collision theory, A is the product of the collision rate Z and a steric component P.
Units:(m3 mol-1)n-1 s-1
Symbol:A
D0
Synonyms:Frequency Factor
Translation: DEPräexponentieller Faktor
FRFacteur préexponentiel

Sources
TitleAuthor(s)MediumLocationRankSorted ascendingQualityRatingQuantitySource typeSystems
NIST Chemical Kinetics Database on the WebOnlineOnline
(Free) 		11
5
Data (measured)
NIST Chemical Kinetics Database on the WebOnlineOnline
(Free) 		11
5
Data (calculated)
CRC Handbook of Chemistry and PhysicsLide D.R.OnlineOnline
(Subscription) 		22
3.5
Data (measured)
Evaluated Kinetic Data for High Temperature Reactions Vol. 4 Homogeneous Gas Phase Reactions of Halogen- and Cyanide- Containing SpeciesBaulch D.L. ; Duxbury J. ; Grant S.J. ; Montague D.C. Print589 C21
4
Data (measured)
Gas-Phase Tropospheric Chemistry of Organic Compounds, Vol. 2Atkinson Roger (Ed.)Print589 C21
4
Data (measured)
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 13a: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18 a: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18b: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18c: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18 D1: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18 D2: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18 E1: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 18 E2: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds Liquids
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 13b: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 13c: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 13d: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds
Landolt-Börnstein: New Series = Neue Serie Gruppe 2 Vol. 13e: Radical Reaction Rates in LiquidsOnlineOnline
(Subscription) 		21
4
Data (measured)Organic Compounds
Physikalisch-chemische DatenLechner M.D. (Ed.)Print303 C22
3.5
Data (measured)Gases
GRI-MechOnlineOnline
(Free) 		22
3.5
Data (measured)
Liquid-phase reaction rate constantsDenisov E. T.PrintNEBIS33
2
Data (measured)
IUPAC Gold BookOnlineOnline
(Free) 		101
0
Definition

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