Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
The equilibrium value calculated from it is used in the chord-conductance equation, and its namesake is paired with Planck as the creator of a molar flux equation. Derivable from both the equation linking free energy change to reaction quotient and by the assumption that drift and diffusion are equal and opposite in its namesake's current density equation, it can be obtained from the Goldman-Hodgkin-Katz voltage equation in the case of only one ion. Useful in concentration cells, its importance comes in the case of nonstandard cell potentials. Including Faraday's constant and the charge of the ions involved, FTP, name this central equation of electrochemistry, named for the winner of the 1920 Nobel Prize in Chemistry.
A:
Science