The value of `(E_(H_(2)O)//H_(2)^(@))` (1atm) Pt at 298K would b eA. `+0.207`B. `-0.414V`C. `-0.207V`D. `+0.414V`

The value of `(E_(H_(2)O)//H_(2)^(@))` (1atm) Pt at 298K would b eA. `

1.	The value of `(E_(H_(2)O)//H_(2)^(@))` (1atm) Pt at 298K would b eA. `+0.207`B. `-0.414V`C. `-0.207V`D. `+0.414V`
Answer» Correct Answer - B For pure water `[H^(+)]=10^(-7)M` `H^(+)(aq)+e^(-)rarr1//2H_(2)` `E=E^(@)-(0.0591V)/(1)"log "(1)/([H^(+)])` `=0V-(0.0591V)/(1)"log"(1)/(10^(-7))` `=-0.0591Vxx"log"10^(7)` `=-0. 0591xx7V=-0.414V`

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The value of `(E_(H_(2)O)//H_(2)^(@))` (1atm) Pt at 298K would b eA. `+0.207`B. `-0.414V`C. `-0.207V`D. `+0.414V`

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