Zinc-air batteries are actively being researched because one reactant (oxygen) is provided in infinite supply for free. The standard cell potential for this battery is 1.65 V. Calculate the cell potential when the partial pressure of oxygen in the cell is 0.190 atm and the temperature is 25.0°C. The reaction in the cell converts Zn(s) and O2(g) into ZnO(s) .
2Zn(s) + O2 (g) 2ZnO(s)
A) 1.61 V
B) 1.62 V
C) 1.64 V
D) 1.66 V
E) 1.69 V
Correct Answer:
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