In a cell that untillizes the reaction ,
`Zn_((s)) + 2 H_((aq))^+ rarr Zn_((aq.))^(2+) + H_(2 (g) )`, adedition of ` H_2 SO_4` to cathode compartment will :

Options

A. increase the ` E` and shift equilibrium to the left
B. lower the E and shift equilibrium to the right
C. increase the E and shift equilibrium to the right
D. lower the E and shift equilibrium to the left

Answer

C

Explanation

`E_("cell") = E_("cell")^@ = (0.059)/1 log. ([H^+]^2)/(P_(H_2)xx[Zn^(2+)])`
Addition of ` H_2SO_4` will increase `[H^+]` and thus `E_("cell")` will be more and equilibriumm will shift to right .