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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