The standard EMF. of a cell, involving one electron change is found to be 0.591 V at 25 ℃ . The equilibrium constant of the reaction is 10 x . Find the value of x . F = 96500 C equivalent -1 , R = 8.314 J K -1 mol -1

Step-by-step solution

ΔG = ΔG ° − 0 .591 n logQ at equilibrium ΔG = 0 , E cell = 0 , Q = K C , ΔG ° = − 0 .591 1 logQ E cell = E cell o − 0 .0591 n log K c 0 = 0 .591 − 0 .0591 1 log K c ⇒     − 0 .591   =   − 0 .0591   log K c ⇒ log K c = 0.591 0.0591 = 10 ∴ K c = antilog 10 = 1 × 10 10 .