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Metallurgical Engineering · Q7

Electrometallurgy and Corrosion

Engineering and GATE · Metallurgical Engineering · question 7

Q7

The difference in reversible potential between oxygen reduction reaction and hydrogen evolution reaction of any pH in an aqueous electrolyte is . . . . . . . . volt. [Given, standard reduction potentials for hydrogen evolution reaction, E^ 2H^ + H_2 = OV,SHE and oxygen reduction reaction : E^ O_24OH = 0.4V,SHE. Also PH2 = PO2 = 1 atm]

The difference in reversible potential between oxygen reduction reaction and hydrogen evolution reaction of any pH in an aqueous electrolyte is . . . . . . . . volt.
[Given, standard reduction potentials for hydrogen evolution reaction,     and oxygen reduction reaction :     Also PH2 = PO2 = 1 atm]
A.
0
B.
0.41
C.
0.82
D.
1.23
Answer

Answer: Option D

Solution

Answer: Option D
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