Question

according to ellingham Diagram,the oxidation reaction of carbon to carbon monoxide may be used to reduced which of the following oxides at the lower temperature? answer

Answer 1

Hello mate,

Here is your answer,

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C will act as a reducing agent for reduction of Cuprous oxide to Cu +1 with the removal of oxygen as ∆G is less than 0.

2Cu2O --------> 4 Cu + O2                    ∆G = 300 Kilo Joule / mole  

C + O2 ---------> CO2                             ∆G = -350 Kilo Joule / mole

If we coupled above two reactions,

2 Cu2O + C + O2 ---------> 4Cu + O2 + CO2     ∆G =300 + (-350)  

2 Cu2O + C ------> 4Cu + CO2                              ∆G = - 50 Kilo Joule/ mole

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HOPE THIS HELPS UU :)

AND STAY BLESSED.