The relationship between the change in Gibbs free energy and the emf of an electrochemical cell is given by ________.
A)ΔG =
B)ΔG =
C)ΔG = -nFE
D)ΔG = -nRTF
E)ΔG =

Question

The relationship between the change in Gibbs free energy and the emf of an electrochemical cell is given by ________.
A)ΔG = 
B)ΔG = 
C)ΔG = -nFE 
D)ΔG = -nRTF 
E)ΔG =

Quizplus · Accepted Answer

This equation, known as the Nernst equation, relates the change in Gibbs free energy to the electromotive force (emf) of an electrochemical cell. It takes into account the number of electrons transferred (n), the Faraday constant (F), and the emf of the cell (E). The negative sign in the equation indicates that a positive emf corresponds to a negative change in Gibbs free energy, which means that the reaction is spontaneous.

The Relationship Between the Change in Gibbs Free Energy and the Emf