Exponents and the K constant

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Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Exponents and the K constant

Postby Vincent Leong 2B » Thu Jan 16, 2020 7:50 pm

Why do we use the coefficients in a reaction as exponents in the K constant? What do they imply?

Letty Liu 2C
Posts: 105
Joined: Fri Aug 09, 2019 12:16 am

Re: Exponents and the K constant

Postby Letty Liu 2C » Fri Jan 17, 2020 10:13 am

We use exponents to indicate there are two moles of something reacting to form the molecule. Please correct me if I’m wrong!

William Francis 2E
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

Re: Exponents and the K constant

Postby William Francis 2E » Fri Jan 17, 2020 11:02 am

We don't need to know how the K equation, [products]x/[reactants]y is derived. I do not believe that making the coefficients exponents has any obvious conceptual implication.

Chantel_2I
Posts: 109
Joined: Sat Sep 07, 2019 12:19 am

Re: Exponents and the K constant

Postby Chantel_2I » Sat Jan 18, 2020 4:09 pm

We are essentially multiplying the concentrations of all the products. So if you have R1+R2 <-> 2P, it's like having P + P, so to find K, we multiply [P]x[P], so [P]^2.

Bryan Chen 1H
Posts: 58
Joined: Mon Jun 17, 2019 7:24 am

Re: Exponents and the K constant

Postby Bryan Chen 1H » Sat Jan 18, 2020 4:54 pm

i dont think you need to know how its derived but prof. jukka keranen teaches you how K is derived in his ls30A lecture if youre interested.


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