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Out of C and CO, which is a better reducing agent at 673 K? |
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Answer» Solution :The following reactions TAKE place, when carbon and carbonmonoxide acts as a reducing AGENT. (i) `{:(2C + O_2 , to , 2CO),(C + O_2, to , CO_2):} implies` Carbon as reducing agent. (ii) `2CO + O_2 to 2CO_2 } CO` is reducing agent. From ELLINGHAM diagram, at TEMPERATURE 673 K, the free energy CHANGE of the formation of `CO_2` from `CO` is more negative than the formation of `CO` or `CO_2` from carbon. Hence, at 673 K, CO is better reducing agent than carbon. |
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