Manipal MET2011ChemistryElectrochemistry
For a cell reaction involving a two electron change, the standard emf of the cell is found to be 0.295 V at 25^ C . The equilibrium constant of the reaction at 25^ C will be
Options
- A10
- B1 10¹⁰
- C1 10⁻¹⁰
- D10 10⁻²
Correct answer
B. 1 10¹⁰
Step-by-step solution
aligned G^ = & n F E^ G^ & =-2.303 R T K_c n F E^ & =2.303 R T K_c K_c & = n F E^ 2.303 R T = 2 96500 0.295 2.303 8.314 298 K_c^ & =9.97 K_c & =1 10¹⁰ aligned