Pre Equillibrium

Arrhenius Equation:

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Pre Equillibrium

Postby Jielena_Bragasin2G » Sun Mar 08, 2020 9:30 pm

I don't quite understand the concept of pre equilibrium; can someone expand on Lavelle's explanation: "the reaction before the rate limiting step at the equilibrium constant K"?

Hui Qiao Wu 1I
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Re: Pre Equillibrium

Postby Hui Qiao Wu 1I » Sun Mar 08, 2020 9:58 pm

As a forward rxn is happening, the products are accumulating. Since thee are so many products, the rxn also wants to reverse the direction to try to get rid of the products (I am not sure if the rxn actually reverses the direction or it is just a state it wants to achieve). Therefore, this whole situation mimics the characteristics of equilibrium.

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Re: Pre Equillibrium

Postby Chantel_2I » Mon Mar 09, 2020 2:41 pm

If the second step is the "slow step," there will be a buildup of the product of the first step, so the first reaction will tend to go in the reverse direction as well, creating an equilibrium scenario.

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