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Question: Zn \| Zn2+ (C1)\|\| Zn2+ (C2)\|Zn. for this cell ∆G is negative if...

Zn | Zn2+ (C1)|| Zn2+ (C2)|Zn. for this cell ∆G is negative if

A

C1 = C2

B

C1> C2

C

C2> C1

D

None

Answer

C2> C1

Explanation

Solution

Zn →Zn(C1)2++ 2e−\text{Zn }\overset{\quad\quad}{\rightarrow}\text{Z}\text{n}_{\left( C_{1} \right)}^{2 +}\text{+ 2}\text{e}^{-} Zn(C2)2+\mathrm { Zn } _ { \left( \mathrm { C } _ { 2 } \right) } ^ { 2 + } Zn(C2)2++ 2e−→ Zn\text{Z}\text{n}_{\left( C_{2} \right)}^{2 +}\text{+ 2}\text{e}^{-}\overset{\quad\quad}{\rightarrow}\text{ Zn} Zn(C1)2+\mathrm { Zn } _ { \left( \mathrm { C } _ { 1 } \right) } ^ { 2 + }

e=0−0.05912log⁡C1C2e = 0 - \frac{0.0591}{2}\log\frac{C_{1}}{C_{2}}

E→+veWhenC1<C2E \rightarrow + veWhenC_{1} < C_{2}