# Questions tagged [kinetics]

The study of rates and steps in mechanisms of chemical processes.

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### How to model carbon sorption processes?

I am looking for a tool to simulate adsorption and desorption processes. Both chemical kinetics and the thermodynamics part are equally important. Is Cantera good for this? Can it model heat transfer ...
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### How can the reaction heat be ignored in an energy balance?

I have received from my professor the following (summarized) problem: A first-order exothermic reaction $\ce{A->B}$ took place in a typical tubular plug flow reactor (PFR). The tube was cooled to a ...
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### How to write the balanced chemical equation for the system in a rate plot?

I have the rate plot below: I know that $\ce{A}$ and $\ce{B}$ are the reactants, and $\ce{C}$ is the product. The textbook says that the balanced equation is $$\ce{3A + B -> 2C}\\[1em]$$ However, ...
1 vote
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### Which Gibbs' free energy is an activation energy diagram referring to?

In the case of activation energy diagrams in terms of potential energy, I understand that when we're talking about two individual molecules, the potential energy is highest in the transition state ...
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### How to find the initial rate of a rate plot? [closed]

In the graph above, how do I find the initial rate of $$\frac{d[A]}{dt}$$ My balanced chemical equation is $$\ce{3A + B -> 2C}\\[1em]$$
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### Chemical species equations in a kinetic mechanism of combustion

In combustion, for a kinetic mechanism involving $m$ reactions and $n$ chemical species, of the form \begin{align} \begin{cases} \nu_{11}' \mathcal{S}_1 + \nu_{12}' \mathcal{S}_2 + \dots + ...
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### How does stirring demonstrate a diffusion-controlled reaction?

I was reading about diffusion-controlled reactions, and on the Wikipedia page (Diffusion-controlled_reaction) it says the following: "One classical test for diffusion control is to observe ...
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### Effect of changing of the concentration of reactants when concentration of the initiator and the concentration of the initial reactant are very small

A + I---> p What happens to the rate of the reaction when the concentration of the reactant is changed in a system that its concentration of its initiator and the concentration of the initial ...
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1 vote
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### How to find the current transferred to the anode and cathode of a lithium ion battery at different voltages?

I am trying to find the current transferred to the anode and cathode of a lithium ion battery at different voltages. I know the temperature (approximately) of the battery, the battery's starting ...
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### Order of reaction with and without the presence of catalyst

When ethene reacts with hydrogen to give ethane in the presence of Ni, the order of the reaction is 2, if I am not wrong, please correct me if I am. But if we remove the catalyst, and simply allow ...
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### Derivation of Flory's Model for Linear Condensation of Polymers

I'm having some trouble understanding a part of Flory's model for linear polycondensation reactions. In his 1936 paper, he derives an expression for the probability of the existence of a particular $x$...
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### Rate of Reaction and half life [duplicate]

During the course of chemical kinetics while studying zero order or first order they consider rate of reaction to be dependent only on single Reactant For ex:- A--> product,Rate of Reaction=k[A]^0 ...
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### The differential rate law applies to only one single species

In my book it was written that The differential rate law applies to only one single species, so unless we have equimolar amounts of each reactant or make an approximation using an excess of one, we ...
1 vote
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### Can a non-rate determining step control what products form in a reaction?

In Organic Chemistry by Clayden, the stereoselectivity and regioselectivity of the E1 mechanism is explained in terms of the differing transition state energies (and therefore rates) of the possible ...