Timeline for Why on changing temperature of a reaction its activation energy and pre-exponenetial factor do not change significantly?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 24, 2021 at 15:52 | comment | added | porphyrin | As I write in my comment, it depends on the electronic properties of the molecules involved, ie. the energy of the transition state complex which is sort of half reactants and half product. Calculating the energy of this is very hard particularly as there is little or no experimental data. If the reaction is AX+B $\to$ A-X-B $\to$ A+BX it is the energy of A-X-B. | |
| Apr 24, 2021 at 14:02 | comment | added | Rishi | This may help. | |
| Apr 24, 2021 at 10:28 | comment | added | Pranita Baruah 1 | On what factors does the activation energy depend on? Could you please tell me? | |
| Apr 24, 2021 at 6:51 | comment | added | porphyrin | The activation energy is determined by the electronic interactions between the reactants as they collide and form a transition state, and not on temperature. The pre-exponential terms does depend on temperature but the effect is generally small, it mainly depends on how many times the reactants collide per second. | |
| Apr 24, 2021 at 6:24 | history | asked | Pranita Baruah 1 | CC BY-SA 4.0 |