Saved Bookmarks
| 1. |
What is the rate forward reaction is at equilibrium |
|
| Answer» | \t\t\tOne is heated in the presence of excess of oxygen or air.one is heated in the absence or limited supply of oxygen or airThis method is employed for sulphide ores.This method is employed for carbonate ores.Sulphur dioxide is produced along with metal oxide.Carbon dioxide is produced along with metal oxide. Example: For the ores ZnS (sphalerite) and Cu2S (chalcocite), balanced equations for the roasting are: {tex}2ZnS+3O_2\\to2 ZnO+ 2SO_2{/tex} {tex}2 Cu_2S + 3O_2\\to 2 Cu_2O + 2 SO_2{/tex} Example:{tex} ZnCO_3\\to ZnO+ CO_2{/tex} \t
| |
|---|---|---|