3. Consider an electrochemical cell Pt/H, Cl (1 M)/AgCl/Ag. (a) What is the open circuit potential (OCP) of this cell (potential of the Pt electrode with respect to the Ag electrode)? (b) If we connect the two electrodes of this cell to an external copper wire, will there be continuous current flow (at steady state)? If so, which direction (outside the cell)? (c) Now we continuously bubble hydrogen gas (standard atmosphere pressure) around the Pt electrode, so that the cell becomes Pt/H₂/H, CI (1 M)/AgCI/Ag. What is the OCP of this new cell? If we connect the cell to an external copper wire, will there be continuous current flow at steady state? If so, which direction?

Fig: 1