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, $$\frac{{{E^ \circ }2{H^ + }}}{{{H_2}}} = OV,SHE$$ and oxygen reduction reaction : $$\frac{{{E^ \circ }{O_2}}}{{4OH}} = 0.4V,SHE.$$ Also PH2 = PO2 = 1 atm]
A. 0
B. 0.41
C. 0.82
D. 1.23
Answer: Option D
Related Questions on Electrometallurgy and Corrosion
Intergrannular corrosion of light 18-8 stainless steel can not be prevented by
A. reducing the carbon content to less than 0.05%
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C. adding strong carbide forming elements
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A. Platinum
B. gold
C. graphite
D. titanium
Difficult to monitor and very dangerous form of corrosion
A. Galvanic
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C. Crevice
D. Stress
A. Zn, Fe, Pt, Cu
B. Pt, Zn, Cu, Fe
C. Fe, Pt, Cu, Zn
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