Rate constant and activation energy of the exchange reaction carbon monoxide + nitrous oxide .fwdarw. carbon dioxide + molecular nitrogen in the temperature range 1060-1220 K. Application of the thermal explosion theory to a system with two parallel reactions

1983 ◽  
Vol 87 (14) ◽  
pp. 2455-2457 ◽  
Author(s):  
Helene Loirat ◽  
Francoise Caralp ◽  
Michel Destriau
Keyword(s):  
Carbon Dioxide ◽  
Activation Energy ◽  
Carbon Monoxide ◽  
Nitrous Oxide ◽  
Exchange Reaction ◽  
Thermal Explosion ◽  
Rate Constant ◽  
Molecular Nitrogen ◽  
Parallel Reactions ◽  
Thermal Explosion Theory

scholarly journals Pyrolysis of phenylmercaptoacetic acid

1968 ◽  
Vol 46 (2) ◽  
pp. 191-197 ◽  
Author(s):  
A. T. C. H. Tan ◽  
A. H. Sehon
Keyword(s):  
Carbon Dioxide ◽  
Activation Energy ◽  
Carbon Monoxide ◽  
Acetic Acid ◽  
Rate Constant ◽  
Order Reaction ◽  
First Order Reaction ◽  
Kcal Mole ◽  
Dissociation Process ◽  
First Order

The pyrolysis of phenylmercaptoacetic acid was investigated by the toluene-carrier technique over the temperature range 760–835 °K. The main products of the decomposition were phenyl mercaptan, carbon dioxide, acetic acid, phenyl methyl sulfide, carbon monoxide, and dibenzyl.The overall decomposition was a first-order reaction with respect to phenylmercaptoacetic acid and could be represented by the two parallel steps:[Formula: see text]Reaction [1] was shown to be a homogeneous first-order dissociation process, and its rate constant was represented by the expression[Formula: see text]The activation energy of this reaction, i.e. 58 kcal/mole, was identified with D(C6H5S—CH2COOH).

THE THERMAL DECOMPOSITION OF PHENYLACETIC ACID

1960 ◽  
Vol 38 (8) ◽  
pp. 1261-1270 ◽  
Author(s):  
Margaret H. Back ◽  
A. H. Sehon
Keyword(s):  
Carbon Dioxide ◽  
Activation Energy ◽  
Thermal Decomposition ◽  
Carbon Monoxide ◽  
Rate Constant ◽  
Phenylacetic Acid ◽  
Order Process ◽  
First Order ◽  
Kinetics Of ◽  
Dissociation Step

The thermal decomposition of phenylacetic acid was investigated by the toluene-carrier technique over the temperature range 587 to 722 °C. The products of the pyrolysis were carbon dioxide, carbon monoxide, hydrogen, methane, dibenzyl, and phenylketene. From the kinetics of the decomposition it was concluded that the reaction[Formula: see text]was a homogeneous, first-order process and that the rate constant of this dissociation step was represented by the expression k = 8 × 1012.e−55,000/RT sec−1. The activation energy of this reaction may be identified with D(C6H5CH2—COOH). The possible reactions of carboxyl radicals are discussed.

Dichlorosilylene: Rate constant for reaction with carbon monoxide and nitrous oxide

1989 ◽  
Vol 11 (3) ◽  
pp. 235-244 ◽  
Author(s):  
V. Sandhu ◽  
O. P. Strausz ◽  
T. N. Bell
Keyword(s):  
Carbon Monoxide ◽  
Nitrous Oxide ◽  
Rate Constant

scholarly journals The combination of carbon monoxide–haem with apoperoxidase

1969 ◽  
Vol 114 (4) ◽  
pp. 719-724 ◽  
Author(s):  
Charles Phelps ◽  
Eraldo Antonini
Keyword(s):  
Activation Energy ◽  
Carbon Monoxide ◽  
Rate Constant ◽  
Binding Sites ◽  
Order Process ◽  
First Order ◽  
Effects Of Ph ◽  
Kinetics Of

1. Static titrations reveal an exact stoicheiometry between various haem derivatives and apoperoxidase prepared from one isoenzyme of the horseradish enzyme. 2. Carbon monoxide–protohaem reacts rapidly with apoperoxidase and the kinetics can be accounted for by a mechanism already applied to the reaction of carbon monoxide–haem derivatives with apomyoglobin and apohaemoglobin. 3. According to this mechanism a complex is formed first whose combination and dissociation velocity constants are 5×108m−1sec.−1 and 103sec.−1 at pH9·1 and 20°. The complex is converted into carbon monoxide–haemoprotein in a first-order process with a rate constant of 235sec.−1 for peroxidase and 364sec.−1 for myoglobin at pH9·1 and 20°. 4. The effects of pH and temperature were examined. The activation energy for the process of complex-isomerization is about 13kcal./mole. 5. The similarity in the kinetics of the reactions of carbon monoxide–haem with apoperoxidase and with apomyoglobin suggests structural similarities at the haem-binding sites of the two proteins.

scholarly journals The thermal conductivities of carbon monoxide and nitrous oxide

1928 ◽  
Vol 121 (787) ◽  
pp. 285-293 ◽  
Keyword(s):  
Molecular Structure ◽  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Nitrous Oxide ◽  
Kinetic Theory ◽  
Physical Properties ◽  
Kinetic Theory Of Gases ◽  
Molecular Weights ◽  
Thermal Conductivities

The authors’ experiments on the thermal conductivities of carbon monoxide and nitrous oxide were undertaken partly because very few determinations had been made previously, and partly on account of a consideration of other physical properties of these gases. Smith showed experimentally that the viscosities of nitrogen and carbon monoxide are equal, and a similar result was obtained in the case of carbon dioxide and nitrous oxide. Such results are indicated by the Kinetic Theory of Gases from the aspect of the equality of molecular weights in the two cases. Similar equalities are not anticipated, however, in the case of the thermal conductivities, as the conduction effect depends on a consideration of differences in molecular structure. The following table shows the values of the thermal conductivities and the viscosities of the four gases concerned, and illustrates the extent to which the thermal conductivities differ:—

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