The of different types of half cells are as follows:

| Half cell | A | B | C | D |
|---|---|---|---|---|
| | | | | |

(Where E is the electromotive force). Which of the above half cells would b

Question

The  of different types of half cells are as follows:

| Half cell | A | B | C | D |
|---|---|---|---|---|
|  |  |  |  |  |

(Where E is the electromotive force). Which of the above half cells would be preferred to be used as reference electrode?

Canvas Classes · Accepted Answer

Strategy:
 A reference electrode must provide a stable potential that does not fluctuate with environmental changes like temperature. Therefore, the temperature coefficient  must be as small as possible.

Comparison of coefficients:
- A: 
- B: 
- C:  (Smallest)
- D:

Conclusion:
Half-cell C has the least sensitivity to temperature variations, making it the most reliable for reference purposes.

More questions from Electrochemistry