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| 1. |
E^(c-) of Cu is + 0.34 V while that of Zn is - 0.76V . Explain. |
| Answer» Solution :Positive `E^(@)` value for Cu is due to the fact THATSUM of SUBLIMATION enthalpy and ionization enthalpy to convert Cu(s) to `Cu^(2+)` (aq) is so high that it is not BALANCED by its hydratio enthalpy. Negative `E^(@)` for ZN ( more negative than expected value) is due to the fact that after removal of electrons from 4s orbital , stable `3d^(10)` configuration is ATTAINED. | |