Standard electrode potential|Chemical Kinetics|JEEMAIN 2019

JEE MAIN 2019

09-01-19 S2

Question

If the standard electrode potential for a cell is 2 V at 300 K , the equilibrium constant $(\mathrm{K})$ for the reaction
$\mathrm{Zn}(\mathrm{S})+\mathrm{Cu}^2(\mathrm{aq}) \rightleftharpoons \mathrm{Zn}^{2+}(\mathrm{aq})+\mathrm{Cu}(\mathrm{s})$ at 300 K is approximately
$\left(\mathrm{R}=8 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}, \mathrm{~F}=96000 \mathrm{Cmol}^{-1}\right)$

Select the correct option:

$e^{320}$

$e^{160}$

$e^{-160}$

$e^{-80}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution