What is the relationship between Gibbs free energy of the cell reaction in a galvanic cell and the emf of the cell? When will the maximum work be obtained from a galvanic cell?

What is the relationship between Gibbs free energy of the cell reaction in a galvanic cell and the emf of the cell ? When will the maximum work be obtained froma galvanic cell ?

In galvanic cell

Write the relationship between Gibb's free energy and EMF of cell is.

What is the relationship between free energy change and emf of a cell?

What is galvanic cell?