For 2Zn(g) + O2 - 2ZnO(s) (T above 1180 K, the boiling point of Zn) take Delta G deg = -930 + 0.405 T kJ, and for 2C +

Question

For 2Zn(g) + O2 -> 2ZnO(s) (T above 1180 K, the boiling point of Zn) take Delta G deg = -930 + 0.405 T kJ, and for 2C + O2 -> 2CO, Delta G deg = -221 - 0.179 T kJ. Carbon reduction of ZnO is first possible at about, and zinc is then obtained as

Accepted Answer

1214 K; zinc vapour that must be condensed

Answer

3137 K; molten zinc that collects in the furnace hearth

Answer

1751 K; zinc vapour that must be condensed

Answer

1214 K; molten zinc that collects in the furnace hearth

For $2 Zn (g) + O X_{2} 2 ZnO (s)$ (T above 1180 K, the boiling point of Zn) take $Δ G^{\circ} = - 930 + 0.405 T$ kJ, and for $2 C + O X_{2} 2 CO$ , $Δ G^{\circ} = - 221 - 0.179 T$ kJ. Carbon reduction of ZnO is first possible at about, and zinc is then obtained as

Answer: D

More questions on Ellingham diagrams and thermodynamics of reduction

For 2Zn(g)+OX2​​2ZnO(s) (T above 1180 K, the boiling point of Zn) take ΔG∘=−930+0.405T kJ, and for 2C+OX2​​2CO, ΔG∘=−221−0.179T kJ. Carbon reduction of ZnO is first possible at about, and zinc is then obtained as

Answer: D

More questions on Ellingham diagrams and thermodynamics of reduction

For $2 Zn (g) + O X_{2} 2 ZnO (s)$ (T above 1180 K, the boiling point of Zn) take $Δ G^{\circ} = - 930 + 0.405 T$ kJ, and for $2 C + O X_{2} 2 CO$ , $Δ G^{\circ} = - 221 - 0.179 T$ kJ. Carbon reduction of ZnO is first possible at about, and zinc is then obtained as