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The standard Gibbs free energies for the reaction at 1773K are given below. What is the possibility of reducing Al2O3 and PbO with carbon at this temperature?

The standard Gibbs free energies for the reaction at 1773K are given below. What is the possibility of reducing Al2O3 and PbO with carbon at this temperature?

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Grade:11

1 Answers

Arun
25758 Points
2 years ago
= +21360 kJ mol-1
 
Since ΔrG° is positive, the reaction will not take place or Al2O3 will not be reduced by carbon.
 
 
Thus, reaction will be spontaneous and PbO will be reduced by carbon.

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