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What will be the emf for the given cell ...

What will be the emf for the given cell ?
`Pt|H_(2)(g,P_(1))|H^(+)(aq)|H_(2)(g,P_(2))|Pt`

A

`(RT)/(F)log_(e)(p_(1))/(p_(2))`

B

`(RT)/(2F)log_(e)(p_(1))/(p_(2))`

C

`(RT)/(F)log_(e)(p_(2))/(p_(1))`

D

`(RT)/(2F)log_(e)^(p_(2))/(p_(1))`

Text Solution

Verified by Experts

The correct Answer is:
B
The `E^(@)` of cell will be zero.
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Which of the following changes will increase the EMF of the cell : Co(s)|CoCl_(2)(M_(1))||HCl(M_(2))||(H_(2),g)Pt

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Knowledge Check

  • The correct Nernst equation for the given cell Pt_((s)) | Br_(2(l)) | Br^(-) (M) || H^(+) (M) |H_(2(g)) (1bar) | Pt_((s)) is

    A
    `E_"cell"=E_"cell"^@-"0.0591"/2 "log" ([Br_(2(l))][H_2])/([H^+]^2[Br^-]^2)`
    B
    `E_"cell"=E_"cell"^@-"0.0591"/2 "log" ([H^+]^2[Br^-]^2)/([Br_(2(l))][H_2])`
    C
    `E_"cell"=E_"cell"^@-"0.0591"/2 "log" ([H^+]^2[H_2])/([Br_(2(l))][Br^(-)]^2)`
    D
    `E_"cell"=E_"cell"^@-"0.0591"/2 "log" ([Br_(2(l))][Br^-]^2)/([H^+]^2[H_2])`

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