First-order decomposition reaction

Peroxyacetyl nitrate (PAN), H3CCO2ONO2, is a constituent of photochemical smog. It undergoes a first-order decomposition reaction with fi/2 = 32 min. 

O O A first-order decomposition reaction has a rate constant of 2.34 X 10 year . What is the half-life of the reaction Express your answer in years and in seconds. 

The burning surface temperature is related to the burning rate by an Arrhenius equation, which assumes a first-order decomposition reaction for each reaction species at the burning surface. 

The second reaction is a first-order decomposition reaction of the product P, with a rate equation ... 

In its literal form, this reaction is only of academic interest because a molecule is unlikely to break up or isomerize irreversibly in two or more different ways. However, situations frequently encountered in practice are those of multistep parallel first-order decomposition reactions and of parallel reactions that involve coreactants but are pseudo-first order in the reactant A. An example of the first kind is dehydrogenation of paraffins, examples of the second kind include hydration, hydrochlorination, hydroformylation, and hydrocyanation of olefins and some hydrocarbon oxidation reactions. All these reactions are multistep, but the great majority are first order in the respective hydrocarbon, and pseudo-first order if any co-reactant concentration is kept constant. 

The effect of initial benzene partial pressure was accounted for, assuming benzene undergoes a first order decomposition reaction to free radicals at any place in the reactor. 

In a first-order decomposition reaction, 50.0% of a compound decomposes in 10.5 min. (a) What is the rate constant of the reaction (b) How long does it take for 75.0% of the compound to decompose ... 

Other methylated ethylenes have been studied by different laboratories. One of the first studies involved the irradiation of m-2-butene at 202.6-206.2 nm at pressures between 20 adn 500 Torr (47). The collisional stabilization of the trans isomer competes with the first order decomposition reactions ... 

We have shown that the acetylene in the burned gases is the source for most of the mass of mature soot particles. Furthermore, we have found that the measured growth rates are consistent with the assumption that a first order decomposition reaction of acetylene with the soot surface is responsible for most of the soot growth, although diacetylene may also play some role. 

The kinetics of O2 oxidation of C2H5OH in subcritical water via CjHjOH- MeCHO MeC02H -> CO CO2 have been studied and overall first-order decomposition reaction parameters were determined. ... 

As an example of the use of this treatment to construct a transition matrix, we will take the first-order decomposition reaction... 

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