An activation energy experiment for a second-order reaction in a single laboratory period

1983 ◽  
Vol 60 (2) ◽  
pp. 154 ◽  
Author(s):  
Raymond C. Barile ◽  
F. S. C. Michiels
Keyword(s):  
Activation Energy ◽  
Order Reaction ◽  
Second Order ◽  
Second Order Reaction ◽  
Single Laboratory

Studies on Blood Coagulation Factor V

1972 ◽  
Vol 27 (01) ◽  
pp. 033-042 ◽  
Author(s):  
H. C Hemker ◽  
M. J. P Kahn
Keyword(s):  
Activation Energy ◽  
Coagulation Factor ◽  
Order Reaction ◽  
Second Order ◽  
Factor V ◽  
Second Order Reaction ◽  
Bovine Plasma ◽  
Coagulation Factor V ◽  
Blood Coagulation Factor V

SummaryThe disappearance of factor V-activity from human plasma on storage can be described as a first order reaction with an activation energy of about 44 kcal/mol.The disappearance of factor V- activity from bovine plasma in vitro is a second order reaction with an activation energy of about 66 kcal/mol.The inactivation of human prothrombinase during coagulation is a second order reaction; the activation energy is about 10 kcal/mol. It is concluded that this inactivation involves a reaction of the factor V moiety of prothrombinase with free factor V.

Nucleophilic decomposition of α-disulfones

1969 ◽  
Vol 47 (6) ◽  
pp. 873-877 ◽  
Author(s):  
Paul Allen Jr. ◽  
Patrick J. Conway
Keyword(s):  
Activation Energy ◽  
Order Reaction ◽  
Second Order ◽  
Hammett Equation ◽  
Second Order Reaction ◽  
Kcal Mole ◽  
Arrhenius Activation Energy ◽  
Hydroxide Ion ◽  
First Order ◽  
Sulfur Bond

The sulfur–sulfur bond of α-disulfones is attacked by hydroxide ion in alcohol to yield sulfinate and sulfonate ion by a second-order reaction, first order in each of the reactants. With aromatic disulfones the ρ value of the Hammett equation is 0.2. The Arrhenius activation energy of the reaction of p-tolyl disulfone is 7.95 kcal/mole.

Stability of radical anions derived from substituted 5-nitrofurans investigated by ESR spectroscopy

1985 ◽  
Vol 50 (7) ◽  
pp. 1594-1601 ◽  
Author(s):  
Jiří Klíma ◽  
Larisa Baumane ◽  
Janis Stradinš ◽  
Jiří Volke ◽  
Romualds Gavars
Keyword(s):  
Radical Anion ◽  
High Stability ◽  
Esr Spectroscopy ◽  
Reaction Path ◽  
Order Reaction ◽  
Second Order ◽  
Radical Anions ◽  
Second Order Reaction ◽  
Unpaired Electron Density ◽  
The Stability

It has been found that the decay in dimethylformamide and dimethylformamide-water mixtures of radical anions in five of the investigated 5-nitrofurans is governed by a second-order reaction. Only the decay of the radical anion generated from 5-nitro-2-furfural III may be described by an equation including parallel first- and second-order reactions; this behaviour is evidently caused by the relatively high stability of the corresponding dianion, this being an intermediate in the reaction path. The presence of a larger conjugated system in the substituent in position 2 results in a decrease of the unpaired electron density in the nitro group and, consequently, an increase in the stability of the corresponding radical anions.

Kinetics of the reaction between hexamethylenediisocyanate and 1-pentanol

1983 ◽  
Vol 48 (11) ◽  
pp. 3279-3286
Author(s):  
Slavko Hudeček ◽  
Miloslav Bohdanecký ◽  
Ivana Hudečková ◽  
Pavel Špaček ◽  
Pavel Čefelín
Keyword(s):  
Liquid Chromatography ◽  
Rate Constants ◽  
Reversed Phase ◽  
Order Reaction ◽  
Second Order ◽  
Second Order Reaction ◽  
Reversed Phase Liquid Chromatography ◽  
Consecutive Reactions ◽  
Phase Liquid ◽  
Kinetics Of

The reaction between hexamethylenediisocyanate and 1-pentanol in toluene was studied by means of reversed-phase liquid chromatography. By employing this method, it was possible to determine all components of the reaction mixture including both products, i.e. N-(6-isocyanate hexyl)pentylcarbamate and N,N'-bis(pentyloxycarbonyl)hexamethylenediamine. Relations for the calculation of kinetic constants were derived assuming a competitive consecutive second-order reaction. It was demonstrated that the reaction involved in this case is indeed a second-order reaction, and the rate constants of the first and second consecutive reactions were determined.

Analytical resolution of a parallel second-order reaction mechanism

2003 ◽  
Vol 35 (6) ◽  
pp. 246-251
Author(s):  
A. E. Croce ◽  
L. V. Mogni ◽  
C. Vicente Irrazábal
Keyword(s):  
Reaction Mechanism ◽  
Order Reaction ◽  
Second Order ◽  
Second Order Reaction ◽  
Analytical Resolution

scholarly journals Ribonucleic acid–deoxyribonucleic acid hybridization as a second-order reaction

1973 ◽  
Vol 135 (3) ◽  
pp. 573-576 ◽  
Author(s):  
Bryan D. Young ◽  
John Paul
Keyword(s):  
Dna Hybridization ◽  
Ribonucleic Acid ◽  
Deoxyribonucleic Acid ◽  
Order Reaction ◽  
Second Order ◽  
Second Order Reaction ◽  
Reaction Theory

Certain features of RNA–DNA hybridization can be accounted for in terms of second-order-reaction theory. These include the use of annealing kinetics to estimate RNA complexity and the occurrence of approximately linear double-reciprocal plots.

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