Consider the following reactions at 1000,^{ci | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) To determine if $C$ can reduce $ZnO$,we consider the reaction: $ZnO_{(s)} + C_{(s)} \rightarrow Zn_{(s)} + CO_{(g)}$.This reaction is the differen

Vedclass · Accepted Answer

$ZnO$ can be reduced to $Zn$ by $C$

Vedclass · Answer

(B) To determine if $C$ can reduce $ZnO$,we consider the reaction: $ZnO_{(s)} + C_{(s)} \rightarrow Zn_{(s)} + CO_{(g)}$.This reaction is the difference between reaction $(II)$ and reaction $(I)$:$\Delta G^o_{reaction} = \Delta G^o_{(II)} - \Delta G^o_{(I)}$$\Delta G^o_{reaction} = -460\,kJ\,mol^{-1} - (-360\,kJ\,mol^{-1}) = -100\,kJ\,mol^{-1}$.Since the overall $\Delta G^o$ is negative,the reaction is spontaneous at $1000\,^{\circ}C$.Therefore,$ZnO$ can be reduced to $Zn$ by $C$.

Consider the following reactions at $1000\,^{\circ}C$:
$(I)$ $Zn_{(s)} + 1/2 O_{2(g)} \xrightarrow{\Delta} ZnO_{(s)};$ $\Delta G^o = -360\,kJ\,mol^{-1}$
$(II)$ $C_{(s)} + 1/2 O_{2(g)} \xrightarrow{\Delta} CO_{(g)};$ $\Delta G^o = -460\,kJ\,mol^{-1}$
Choose the correct statement at $1000\,^{\circ}C$.

Similar Questions

Explain the Hall-Heroult process.

What is the function of flux during the smelting of an ore?

The type of iron obtained from a blast furnace in the extraction of iron is:

In the electrolytic reduction of alumina,why is cryolite $(Na_3AlF_6)$ primarily added?

In the extraction of copper from its sulphide ore,the metal is formed by the reduction of $Cu_2O$ with:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Consider the following reactions at $1000\,^{\circ}C$:$(I)$ $Zn_{(s)} + 1/2 O_{2(g)} \xrightarrow{\Delta} ZnO_{(s)};$ $\Delta G^o = -360\,kJ\,mol^{-1}$$(II)$ $C_{(s)} + 1/2 O_{2(g)} \xrightarrow{\Delta} CO_{(g)};$ $\Delta G^o = -460\,kJ\,mol^{-1}$Choose the correct statement at $1000\,^{\circ}C$.