Has the formula sheet changed?

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Lindsey Lill
Posts: 34
Joined: Wed Sep 21, 2016 2:57 pm

Has the formula sheet changed?

Postby Lindsey Lill » Fri Feb 10, 2017 6:43 pm

Doing some of the old midterms, there are equations popping up that don't seem to be on our equation sheet, like ln K = nFE/RT. Has the formula sheet changed or something? It just kind of confuses me, I'm not sure whether I'm supposed to be aware of these formulas, and I can't solve the problem without looking at the formula used in the problem.

Marie_Rhoads_2C
Posts: 7
Joined: Wed Sep 21, 2016 2:58 pm

Re: Has the formula sheet changed?

Postby Marie_Rhoads_2C » Fri Feb 10, 2017 9:07 pm

That's a combination of two equations equal to ΔG. ΔG=-RTlnK and ΔG=-nFE. They're rearranged and set equal to each other in that problem

Lindsey Lill
Posts: 34
Joined: Wed Sep 21, 2016 2:57 pm

Re: Has the formula sheet changed?

Postby Lindsey Lill » Sat Feb 11, 2017 6:48 pm

What about delta S = nRln(V2/V1)?

That is in another practice midterm. We don't seem to have any formula to find entropy with variable pressure.

Jasmine Cha 1A
Posts: 22
Joined: Wed Sep 21, 2016 2:59 pm

Re: Has the formula sheet changed?

Postby Jasmine Cha 1A » Sat Feb 11, 2017 9:50 pm

Also, I believe the laminated formula sheet for F forgot a decimal point. I believe it should be 96485.3, not 964853. I'm pretty sure the formula sheet given by Dr. Lavelle on quizzes had the correct conversion, however.


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