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Results tagged with kinetics
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user 101509
The study of rates and steps in mechanisms of chemical processes.
1
vote
1
answer
416
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Activation energy and degrees of freedom
According to the Arrhenius equation the rate of a reaction increases as at higher temperature a greater percentage of molecules have translational kinetic energy greater than or equal to activation en …
- 766
3
votes
1
answer
582
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Why a catalyst is not consumed in a reaction when all steps are reversible?
It is said that a catalyst speeds up the rate of a reaction but is not consumed (assuming no side reactions take place). Suppose we have the following reaction:
$$\ce{A + B <=> C} $$
catalysed by $\ce …
- 766
3
votes
0
answers
64
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Is standard change in activation Gibbs free energy indepedent of pressure?
For a chemical reaction the activation volume is defined as:
$$Δ^{\ddagger}V={V^\ddagger}-V$$
where both $V^\ddagger$ and $V$ refer to standard states (I have omitted the symbol for simplicity). One c …
- 766