One term in the chord-conductance equation comes from this equation, which can be used to map Pourbaix diagrams. The Butler-Volmer equation can be reduced to this when "I equals zero," and it is a special case of the Goldman equation for one ion. It can be used to predict the behavior of a concentration cell. When the system is not in equilibrium, this equation accounts for the extra term of "negative R T over n F" times the natural log of the reaction quotient, where F is the Faraday constant, 
One term in the chord-conductance equation comes from this equation, which can be used to map Pourbaix diagrams. The Butler-Volmer equation can be reduced to this when "I equals zero," and it is a special case of the Goldman equation for one ion. It can be used to predict the behavior of a concentration cell. When the system is not in equilibrium, this equation accounts for the extra term of "negative R T over n F" times the natural log of the reaction quotient, where F is the Faraday constant, the total charge of a mole of electrons. For 10 points, name this equation that predicts the voltage of an electrochemical cell.
One term in the chord-conductance equation comes from this equation, which can be used to map Pourbaix diagrams.
Nernst equation 