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Exponents and the K constant

Posted: Thu Jan 16, 2020 7:50 pm
by Vincent Leong 2B
Why do we use the coefficients in a reaction as exponents in the K constant? What do they imply?

Re: Exponents and the K constant

Posted: Fri Jan 17, 2020 10:13 am
by Letty Liu 2C
We use exponents to indicate there are two moles of something reacting to form the molecule. Please correct me if I’m wrong!

Re: Exponents and the K constant

Posted: Fri Jan 17, 2020 11:02 am
by William Francis 2E
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.

Re: Exponents and the K constant

Posted: Sat Jan 18, 2020 4:09 pm
by Chantel_2I
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.

Re: Exponents and the K constant

Posted: Sat Jan 18, 2020 4:54 pm
by Bryan Chen 1H
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.