दिए गए सेल का EMF होगा
`Pt |H_(2)(p_(1)) |H^(+) (aq) |H_(2) (p_(2)) |Pt`

Options

A. `(RT)/(2F) log"" (P _(1))/( P _(2))`
B. `(RT)/(F) log "" (p _(1))/( p _(2))`
C. `(RT)/(F) log "" ( p _(2))/( p _(1))`
D. इनमे से कोई नहीं

Answer

A

Explanation

`RHS, 2 H ^(+) + 2e ^(-) hArr H _(2) (p _(2))`
`LHS, H _(2) (p _(1)) hArr 2H^(+) + 2e ^(-)`
नेट अभिक्रिया `:H _(2) (p _(1)) hArr H _(2) ( p _(2))`
`E = E ^(@) -(RT)/(nF )ln ""(p _(2))/( p_(1)) = - (RT)/(2F) ln "" (p_(2))/( p _(1)) = (RT)/(2F) ln "" (p _(1))/(p_(2))`