Consider the following reaction at 1000° C . (I) Zn(s)+(1/2)O2(g) xrightarrowZnO(s); Δ G° =-360 kJ mol-1 (II) C text(graphite)+(1/2)O2(g) xrightarrowCO(g); Δ G° =- 460 kJ mol-1 Choose the correct statement at 1000° C .

Question

Consider the following reaction at 1000° C . (I) Zn(s)+(1/2)O2(g) xrightarrowZnO(s); Δ G° =-360 kJ mol-1 (II) C text(graphite)+(1/2)O2(g) xrightarrowCO(g); Δ G° =- 460 kJ mol-1 Choose the correct statement at 1000° C . (A) Zinc can be oxidised by carbon monoxide (B) Zinc oxide can be reduced by graphite (C) Both statements a and b are true (D) Both statements a and b are false

Tardigrade Admin · Accepted Answer

At 1000° C zinc oxide can be reduced by graphite. ZnO+C xrightarrowZn+CO

Q. Consider the following reaction at $1000^{\circ} C$ . (I) $Z n (s) + \frac{1}{2} O_{2} (g) Z n O (s);$ $Δ G^{\circ} = - 360 k J m o l^{- 1}$ (II) $C (graphite) + \frac{1}{2} O_{2} (g) CO (g);$ $Δ G^{\circ} = - 460 k J m o l^{- 1}$ Choose the correct statement at $1000^{\circ} C$ .

Zinc can be oxidised by carbon monoxide

Zinc oxide can be reduced by graphite

Both statements a and b are true

Both statements a and b are false

At $1000^{\circ} C$ zinc oxide can be reduced by graphite. $Z n O + C Z n + CO$

Q. Consider the following reaction at 1000∘C . (I) Zn(s)+21​O2​(g)​ZnO(s); ΔG∘=−360kJmol−1 (II) C(graphite)+21​O2​(g)​CO(g); ΔG∘=−460kJmol−1 Choose the correct statement at 1000∘C .