Equation 2 · Part 1 · Chemical Dynamics and Catalysis in Practice: An Advanced Technical Guide
Symbol r
What this part means
the overall reaction rate.
Its job in the formula
r is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol r→Article meaning
Where the article explains it
Here r is the overall reaction rate, is the rate constant of step i , and the partial derivative is taken holding the equilibrium constant of that step fixed (so that only kinetics, not thermodynamics, is perturbed) and all other rate constants constant.
The passage around this formula
Here r is the overall reaction rate, is the rate constant of step i , and the partial derivative is taken holding the equilibrium constant of that step fixed (so that only kinetics, not thermodynamics, is perturbed) and all other rate constants constant. This equation matters because it is the formal object the rest of this section’s isotope analysis is trying to estimate indirectly — DRC values are rarely measured directly; they are inferred from how observables like isotope ratios and apparent activation energies respond to controlled perturbations.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the article section
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