Question

Consider the following Galvanic cell:-

By what value the cell voltage when concentration of ions in anodic and cathodic compartments both increased by factor of 10 at 298K:
A. `+0.0591`
B. `-0.0591`
C. `-0.1182`
D. 0

Answer 1

Correct Answer - C
`{:("Anode":, H_(2) rarr 2H^(+) +2e^(-)),("Cathode":,CI_(2)+2e^(-) rarr 2CI^(-)):}`
`E = E^(@) - 0.0591 log [H^(+)] [CI^(-)]`
on increasing concentration by 10 E wil increase by a factor of `-0.0591log 100 =- 0.0591 xx 2`
`=- 0.1182 V`