Cell Potential and Concentration

Question 1

What is the equation to convert between ΔG° and E°cell?

Answer 1

ΔG°rxn = -nFE°cell

Question 2

What is the equation to convert between ΔG° and the equilibrium constant K?

Answer 2

ΔG°rxn = -RT(ln K)

Question 3

What is the equation to convert between the equilibrium constant K and E°cell?

Answer 3

E°cell = (RT/nF)(ln K)

Question 4

In a voltaic cell, does adding reactants increase or decrease E cell? Why?

Answer 4

Adding reactants drives the reaction more toward the products, making the reaction more spontaneous, and increasing E cell.