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Out of C and CO which is a better reducing agent for ZnO ? |
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Answer» Solution :From Ellingham DIAGRAM, At TEMPERATURE above 1120 K, `Delta_f G_((C","CO))^(@) < Delta_fG_((Zn"," ZnO))^@`and at temperature above 1323 K `Delta_fG_((C"," CO_2)) < Delta_fG_((Zn"," ZnO))^(@)` However, `Delta_fG_((CO"," CO_2)) < Delta_fG_((Zn"," ZnO))^(@)` Hence, CARBON is BETTER reducing agent than CO. The reduction of zinc is CARRIED out at 1673 K. `ZnO + C overset(1673 K)(rarr) Zn + CO`. |
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