Cosoder the reactopm: `(T = 298 K)` `Cl_2 (g) + 2 BR^(-) (aq) rarr 2 Cl^(-) (aq) + Br_2 (aq.)` The emf of he cell, when `[Cl^(-) = (Br_2] = [Br^(-) ] = 0.01M and Cl_2 ` gas is at `1` atm pressure, will be : (`E^@` for the above reaction is `= 29` volt ).A. `0.54` voltB. `0.35` voltC. `0.24` voltD. `-0.29` volt

Cosoder the reactopm: `(T = 298 K)` `Cl_2 (g) + 2 BR^(-) (aq) rarr 2 C

1.	Cosoder the reactopm: `(T = 298 K)` `Cl_2 (g) + 2 BR^(-) (aq) rarr 2 Cl^(-) (aq) + Br_2 (aq.)` The emf of he cell, when `[Cl^(-) = (Br_2] = [Br^(-) ] = 0.01M and Cl_2 ` gas is at `1` atm pressure, will be : (`E^@` for the above reaction is `= 29` volt ).A. `0.54` voltB. `0.35` voltC. `0.24` voltD. `-0.29` volt
Answer» Correct Answer - B `E_("cell")= 0.29 - (0.0591)/(2) "log" ([Cl^(-)]^(2)[Br_(2)])/([Br^(-)]^(2)[Cl_(2)])` `= 0.29 - (0.0591)/(2) "log" ([10^(-2)]^(2)[10^(-2)])/([10^(-2)]^(2)[1])` `0.29 + (0.0591)/(2)xx2=0.349~~ 0.35 V`

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