Nernst Equation
What is Nernst Equation?
The Nernst equation relates the electrode potential of a half-cell to the standard electrode potential and the activities (concentrations) of the reacting species at non-standard conditions. The equation is E = E° − (RT/nF)lnQ, where E° is the standard potential, R is the gas constant, T is temperature, n is the number of electrons transferred, F is Faraday's constant, and Q is the reaction quotient. It describes how cell voltage changes with concentration.
Key Facts
Frequently Asked Questions
The Nernst equation relates the electrode potential of a half-cell to the standard electrode potential and the activities (concentrations) of the reacting species at non-standard conditions. The equation is E = E° − (RT/nF)lnQ, where E° is the standard potential, R is the gas constant, T is temperature, n is the number of electrons transferred, F is Faraday's constant, and Q is the reaction quotient. It describes how cell voltage changes with concentration.