Following are the values of standard potentials of two half cells, which of the following will be the value of standard cell potential Eocell:
+0.52 V
+1.02 V
-1.02 V
- 0.52 V
The E0cell = Ecathode - Eanode
= (0.77-(-0.25))V = +1.02 V .
The standard reduction potentials of Cu2+/Cu and Cu2+/Cu+ are 0.337 and 0.153V respectively. The standard electrode potential of Cu+/Cu half cell will be: