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Arrhenius Equation Variables

Posted: Sun Mar 08, 2020 9:53 pm
by Drew Myers 4G
Can someone explain what each of the variables in the Arrhenius equation represent?

Re: Arrhenius Equation Variables

Posted: Sun Mar 08, 2020 10:06 pm
by Kimberly Koo 2I
In the Arrhenius equation k=Ae^-Ea/RT, A is the "pre-exponential factor" or frequency factor, the frequency of collisions and their orientation, Ea is the activation energy, T is temperature, and R is the universal gas constant.

Re: Arrhenius Equation Variables

Posted: Sun Mar 08, 2020 10:10 pm
by PranaviKolla2B
Does the Arrhenius equation simply tell us the effect of temperature on the rate constant?

Re: Arrhenius Equation Variables

Posted: Sun Mar 08, 2020 10:11 pm
by TarynD_1I
PranaviKolla2B wrote:Does the Arrhenius equation simply tell us the effect of temperature on the rate constant?


Yes, the Arrhenius equation is used to measure/calculate what happens to the rate constant (and the rate of the reaction) when a change in temperature occurs.

Re: Arrhenius Equation Variables

Posted: Mon Mar 09, 2020 2:27 pm
by Nick Lewis 4F
Does this mean that the Arrhenius equation needs to be used when a catalyst is used and there is a temp change or just if there is a temperature change at all? Also, how does this come into play with a biological example? i.e what does it look like in nature?