In the electrochemical cell:

Zn|ZnSO4(0.01 M) || CuSO4(1.0M),Cu, the emf of this Daniel cell is E1. When the concentration of ZnSO4 is changed to 1.0 M and that of CuSO4 is changed to 0.01 M, the emf changes to E2. The relationship between E1 and E2 is : 
( Given, RT= 0.059)

1. E1 = E2

2. E1 < E2

3. E1 > E2

4. E2 = 0 ≠ E1

Subtopic:  Electrode & Electrode Potential | Nernst Equation |
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Zinc can be coated on iron to produce galvanised iron but the reverse is not possible. It is because

(1) zinc is lighter than iron

(2) zinc has lower melting point than iron

(3) zinc has lower negative electrode potential than iron

(4) zinc has higher negative electrode potential than iron

Subtopic:  Nernst Equation |
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The pressure of H2 required to make the potential of H2-electrode zero in pure water at

298 K is

1. 10-12 atm

2. 10-10 atm

3. 10-4 atm

4. 10-14 atm

 

Subtopic:  Nernst Equation |
To view explanation, please take trial in the course below.
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The pressure of H2 required to make the potential of H- electrode zero in pure water at 298 K is

1. 10-12  atm
2. 10-10  atm
3. 10-4  atm
4. 10-14 atm

Subtopic:  Nernst Equation |
To view explanation, please take trial in the course below.
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To view explanation, please take trial in the course below.
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