Which of the following is the correct Arrhenius equation expressing the effect of temperature on the rate constant of a reaction?

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The Arrhenius equation describes the temperature dependence of reaction rates. It is given by the expression:

$k = A e^{- E_{a} / RT}$

where $k$ is the rate constant, $A$ is the pre-exponential factor (or frequency factor), $E_{a}$ is the activation energy, $R$ is the universal gas constant, and $T$ is the absolute temperature.

Answer: $k = A e^{(- E_{a} / RT)}$

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