The standard reduction potentials of Zn and Ag in water at 298 ~K are, aligned Zn ²⁺+2 e⁻ Zn , & E^ =-0.76 ~V and Ag ⁺+e⁻ Ag ; & E^ =+0.80 ~V . aligned Which of the following reactions take place?

Step-by-step solution

For reaction to be spontaneous, E_ cell ^ >0 For option (b), aligned E_ cell ^ o &= (E_ red ⁰ )_ Cathode - (E_ red ⁰ )_ Anode &=0.80-(-0.76)=156 ~V aligned It will be spontaneous reaction E_ cell ^ a >0 .