The standard emf of a cell having one electron change is found to be `0.591 V` at `25^@ C`, The equilibrium constant of the reaction is :A. ` 1^(-10)`B. `29.5 xx 10^(-2)`C. ` 10`D. `1xx10^(1)`

The standard emf of a cell having one electron change is found to be `

1.	The standard emf of a cell having one electron change is found to be `0.591 V` at `25^@ C`, The equilibrium constant of the reaction is :A. ` 1^(-10)`B. `29.5 xx 10^(-2)`C. ` 10`D. `1xx10^(1)`
Answer» Correct Answer - D `DeltaG =- nFE^@` ` DeltaG =- 2. 303 RT log K, nFE^@ = 2.303 RT log K` `log K = (nFE^@)/( 2.303RT) = (2 xx96 500 xx 0. 295)/( 2.303xx 8341 xx 198)` `log K= 9.97 = K= 1 xx 10^(10)`.

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The standard emf of a cell having one electron change is found to be `0.591 V` at `25^@ C`, The equilibrium constant of the reaction is :A. ` 1^(-10)`B. `29.5 xx 10^(-2)`C. ` 10`D. `1xx10^(1)`

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