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| 1. |
In the reaction Cr_2O_3+ 2Al to Al_2O_3 + 2Cr, DeltaG^@ = - 421 kJ is thermodynamically feasible. This is apparent from Gibbs energy value. Why does it not take place at room temperature ? |
| Answer» Solution :The reaction is thermodynamically FAVOURABLE. As we know, even thermodynamicallyfavourable reactions require some activation ENERGY to PROCEED, therefore, this reaction does not occur at ROOM temperature. Heating is REQUIRED for this reaction to start. | |