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| Q. |
The standard emf of the hydrogen-oxygen fuel cell is |
| A. | 1.23 v |
| B. | 2.54 v |
| C. | 3.96 v |
| D. | 0.58 v |
| Answer» A. 1.23 v | |
| Explanation: the standard emf of the hydrogen-oxygen fuel cell is 1.23 v. this type of cell operates efficiently in the temperature range 343 k to 413 k. | |
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