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Question
Can `E_(Cell)^Θ` or `∆_rG^Θ` for cell reaction ever be equal to zero?
Solution
`E_(Cell)^Θ` or `∆_rG^Θ` can never be equal to zero. The only standard electrode potential which is arbitrarily assigned the value zero is the standard hydrogen electrode (SHE). Since everything else is measured concerning SHE; the EΘ cell can never be zero.
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