- 1(current)
Q. No.The potential of hydrogen electrode in contact with a solution with pH =10, is:
| 1. | −0.0591 V | 2. | −5.91 V |
| 3. | 0.0591 V | 4. | −0.591 V |
Subtopic: Relation between Emf, G, Kc & pH |
74%
Level 2: 60%+
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The cell in which the following reactions occurs:
2Fe3+(aq)+2I-(aq)→2Fe2+(aq)+I2(s) has \(E_{cell}^{o}\)= 0.236 V at 298 K.
The standard Gibbs energy of the cell reaction is -
1. 41.14 kJ mol−1
2. 45.54 kJ mol−1
3. −49.94 kJ mol−1
4. −45.54 kJ mol−1
Subtopic: Relation between Emf, G, Kc & pH |
77%
Level 2: 60%+
Hints
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The cell in which the following reactions occurs:
2Fe3+(aq)+2I-(aq)→2Fe2+(aq)+I2(s) has \(E_{cell}^{o}\)= 0.236 V at 298 K.
The standard Gibbs energy of the cell reaction is −45.54 kJ mol−1 . The value of equilibrium constant of the cell reaction is
| 1. | 10.27 × 109 | 2. | 9.57 × 107 |
| 3. | 12.17 × 108 | 4. | 7.17 × 106 |
Subtopic: Relation between Emf, G, Kc & pH |
60%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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