1.

In the electrochemical reaction, `2Fe^(3+)+Zn rarr Zn^(2+) + 2Fe^(2+)` increasing the concentration of `Fe^(2+)`:A. increasing cell emfB. increasing the current flowC. decreases the cell emfD. alters the pH of the solution .

Answer» Correct Answer - C
`E_("cell") = E_("cell")^(@) - (RT)/(nF) "ln" ([Fe^(2+)]^(2))/([Fe^(3+)]^(2))` .
Increasing `[Fe^(2+)]` decreases `E_("cell")` .


Discussion

No Comment Found

Related InterviewSolutions