Q.

The e.m.f. of the following Daniell cell at 298 K is E1; Zn /ZnSO4(0.01M)//CuSO4 (1.0M)/Cu When the concentration of ZnSO4 is 1. 0 M and that of CuSO4 is 0.01 M, the e.m.f. changed to E2. What is the relationship between E1 and E2 ?

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a

E1=E2

b

E2=0E1

c

E1>E2

d

E1<E2

answer is A.

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Detailed Solution

E=E0.05912logZn+2Cu+2

E1=E0+0.06 E2 =E0-0.06

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The e.m.f. of the following Daniell cell at 298 K is E1; Zn /ZnSO4(0.01M)//CuSO4 (1.0M)/Cu When the concentration of ZnSO4 is 1. 0 M and that of CuSO4 is 0.01 M, the e.m.f. changed to E2. What is the relationship between E1 and E2 ?