- #1

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The rate constant k is directly proportional to 1/t

(t stands for the time for the reaction to reach a point)

So I wonder if we can substitute k by 1/t in the Arrhenius equation to become 1/t=Ae^-Ea/RT ?

Thanks a lot

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- Thread starter fhlfw
- Start date

- #1

- 2

- 0

The rate constant k is directly proportional to 1/t

(t stands for the time for the reaction to reach a point)

So I wonder if we can substitute k by 1/t in the Arrhenius equation to become 1/t=Ae^-Ea/RT ?

Thanks a lot

- #2

DrClaude

Mentor

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The rate constant is aThe rate constant k is directly proportional to 1/t

- #3

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The rate of reaction is directly proportional to both rate constant k and 1/t

So are k and 1/t interchangeable in the Arrhenius equation?

- #4

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The rate constant k is directly proportional to 1/t

(t stands for the time for the reaction to reach a point)

For the case that you mean something like this:

[itex]\dot \xi = \frac{{\Delta \xi }}{{\Delta t}}[/itex]

That is just an approximation (except for zero-order reactions).

The rate constant is aconstant, it doesn't vary with time.

Accorting to the Arrhenius equation the rate constant is a function of temperature. If temperature changes over time than the rate constant changes over time too.

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