Saved Bookmarks
| 1. |
How much electricity is required in coulomb for the oxidation of (i) 1 mol of H_2Oto O_2 ? (ii) 1 mol of FeO to Fe_2O_3 ? |
|
Answer» SOLUTION :(i) The electrode reaction for 1 mol of `H_(2)O` is REPRESENTED as: `H_(2)O to H_(2) + 1/2 O_(2)` i.e., `O^(2-) to 1/2O_(2) + 2e^(-)` `therefore` QUANTITY of ELECTRICITY required = `2F= 2 xx 96500 C = 193000 C` (ii) The electrode reaction for 1 mol of FeO is represented as: `FeO to 1/2O_(2)` i.e. `Fe^(2+) to Fe^(3+) +e^(-)` `therefore` Quantity of electricity required = 1F = 96500 C |
|