### What does the Arrhenius Equation tell us?

Posted:

**Sun Mar 10, 2019 9:38 pm**How can we use the Arrhenius equation to see how the activation energy and temperature affect k?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=151&t=44034

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Posted: **Sun Mar 10, 2019 9:38 pm**

How can we use the Arrhenius equation to see how the activation energy and temperature affect k?

Posted: **Sun Mar 10, 2019 9:41 pm**

If you look at the Arrhenius equation, you will see that increasing temperature increases the number to which e is taken to the power of (T is in the denominator and the number is negative so the number becomes a smaller negative). This increases the value of K. If activation energy decreases, then that exponent becomes a smaller negative as well leading to a higher k. Therefore, if Activation energy decreases or Temperature increases, rate constant k increases.