The emf of a galvanic cell is positive when free energy change of reaction is

The free energy change for a reaction is zero when

The free energy change due to a reaction is zero when

The free energy change due to a reaction is zero when

The EMF of a galvanic cell is measured by

The e.m.f. of a cell reaction is positive when the free energy of the cell reaction is :

Write down the relation between the emf of a galvanic cell and the Gibbs energy change for the chemical reaction occuring in the cell.

Write down the relatiuon between the emf of a galvanic cell and the Gibbs energy change for the chemical reaction occuring in the cell.

What do you understand by EMF and standard EMF of a galvanic cell? Write the equation relating standard electromotive force of a galvanic cell with the Gibbs's free energy of the cell reaction.