Given (i) 2Fe2O3(s) $ \to $ 4Fe(s) + 3O2(g); $\Delta $rGo = + 1487.0 kJ mol-1 (ii) 2CO(g) + O2(g) $ \to $ 2CO2(g); $\Delta $rGo = $-$ 514.4 kJ mol-1 Free energy change, $\Delta $rGo for the reaction 2Fe2O3(s) + 6CO(g) $ \to $ 4Fe(s) + 6CO2(g) will be :

Question

Given

(i) 2Fe₂O₃(s) $ \to $ 4Fe(s) + 3O₂(g);

$\Delta $_rG^o = + 1487.0 kJ mol^-1

(ii) 2CO(g) + O₂(g) $ \to $ 2CO₂(g);

$\Delta $_rG^o = $-$ 514.4 kJ mol^-1

Free energy change, $\Delta $_rG^o for the reaction

2Fe₂O₃(s) + 6CO(g) $ \to $ 4Fe(s) + 6CO₂(g) will be :

$-$ 112.4 kJ mol^-1

$-$ 56.2 kJ mol^-1

$-$ 168.2 kJ mol^-1

$-$ 208.0 kJ mol^-1

Solution

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