The equilibrium voltage of the cell,
Zn /ZnSO4 (0.0125 M) ||Ag2SO4 (0.0125 M) / Ag
was measured at several temperatures and the results of the measurements are given in the following table:
| t / °C | 10 | 20 | 30 |
| E / V | 1.5784 | 1.5675 | 1.5566 |
(1) Give the equation for the reaction occurring in this galvanic cell.
(2) Determine the value of the cell voltage at the temperature T = 298 K.
(3) Determine ∆rG298 of the cell reaction.
(4) Determine ∆rH298 of the cell reaction.
