Efficiency of a cell reaction under standard conditions, `A_((s)) + B^(+) rarr A^(+) + B_(s), DeltaH^(@) = -300 kJ` is `70%`. The standard electrode potential of cell is :A. `2.176 V`B. `+ 2 .876 V`C. `1.248 V`D. `+ 1.648 V`

Efficiency of a cell reaction under standard conditions, `A_((s)) + B^

1.	Efficiency of a cell reaction under standard conditions, `A_((s)) + B^(+) rarr A^(+) + B_(s), DeltaH^(@) = -300 kJ` is `70%`. The standard electrode potential of cell is :A. `2.176 V`B. `+ 2 .876 V`C. `1.248 V`D. `+ 1.648 V`
Answer» Correct Answer - A Efficiency `= (DeltaG^(@))/(DeltaH^(@)) = (nE^(@)F)/(DeltaH^(@))` `E^(@) = ("Efficiency" xx DeltaH^(@))/(-nF)` `= (70 xx (-300 xx 10^(+3)))/(1000 xx (-1) xx 96500) = 2.176 V`

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Efficiency of a cell reaction under standard conditions, `A_((s)) + B^(+) rarr A^(+) + B_(s), DeltaH^(@) = -300 kJ` is `70%`. The standard electrode potential of cell is :A. `2.176 V`B. `+ 2 .876 V`C. `1.248 V`D. `+ 1.648 V`

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