[H2SO4] = 4.5 M [H^+] = [HSO4^-] = 4.5 M 25℃ E° = 2.04 V

[H2SO4] = 4.5 M [H^+] = [HSO4^-] = 4.5 M 25℃ E° = 2.04 V

 

 

The overall reaction in the lead storage battery is

Pb(s) + PbO2(s) + 2H^+(aq) + 2HSO4^-(aq) → 2PbSO4(s) + 2H2O(l)

 

Calculate E at 25°C for this battery

when [H2SO4] = 4.5 M, that is, [H^+] = [HSO4^-] = 4.5 M.

At 25°C, E° = 2.04 V for the lead storage battery.

 

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▶ 참고: 납-축전지 redox [ https://ywpop.tistory.com/4282 ]

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n = 2

 

 

 

E = E° - (0.0592 V / n) × logQ

( 참고 https://ywpop.tistory.com/2900 )

 

= (2.04) - (0.0592 / 2) × log(1 / ((4.5)^2 (4.5)^2))

= 2.11734

 

 

 

답: 2.12 V