1. Tardigrade
  2. Question
  3. Chemistry
  4. 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 .

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Q. Consider the following reaction at $ 1000{}^\circ C $ . (I) $ Zn(s)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}ZnO(s); $ $ \Delta G{}^\circ =-360\,kJ\,mo{{l}^{-1}} $ (II) $ C\text{(graphite)}+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}CO(g); $ $ \Delta G{}^\circ =-\,460\,kJ\,mo{{l}^{-1}} $ Choose the correct statement at $ 1000{}^\circ C $ .

CMC MedicalCMC Medical 2008

Solution:

At $ 1000{}^\circ C $ zinc oxide can be reduced by graphite. $ ZnO+C\xrightarrow{{}}Zn+CO $