Question: What is the Nernst equation used for calculating the cell potential at non-standard conditions? (2023)

Options:

1. E = E° - (RT/nF)lnQ
2. E = E° + (RT/nF)lnQ
3. E = E° - (nF/RT)lnQ
4. E = E° + (nF/RT)lnQ

Correct Answer: E = E° - (RT/nF)lnQ

Solution:

The Nernst equation is E = E° - (RT/nF)lnQ, where E is the cell potential, E° is the standard potential, R is the gas constant, T is the temperature, n is the number of moles of electrons, and F is Faraday\'s constant.