NS FL 3 C/P 36

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cr1123
Posts: 5
Joined: Tue Jul 30, 2019 11:06 am

NS FL 3 C/P 36

Post by cr1123 » Fri Aug 02, 2019 5:15 pm

Can someone explain why you don't include the reduction potential of NAD+ when calculation the standard cell potential?
NS_Tutor_Mathias
Posts: 397
Joined: Sat Mar 30, 2019 8:39 pm

Re: NS FL 3 C/P 36

Post by NS_Tutor_Mathias » Mon Aug 05, 2019 3:10 am

To get the potential of your actual battery, you only ever need to consider the differences in reduction potentials between anode and cathode: What comes before is simply what is driving the replenishment of your anode for it to be oxidized again.

What you have correctly spotted is that there is a certain amount of lost potential, and consequently energetic waste, with each step. If we could run the battery directly with NADH as the anode, it would be significantly better!
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