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(a)
Cell Repn:
Nernst Eqn :![E_{cell}=E^0cell-\frac{0.0591}{n}\log \frac{\left [ Al^{3+} \right ]^2}{[Ni^{2+}]^3}](https://learn.careers360.com/latex-image/?E_%7Bcell%7D%3DE%5E0cell-%5Cfrac%7B0.0591%7D%7Bn%7D%5Clog%20%5Cfrac%7B%5Cleft%20%5B%20Al%5E%7B3+%7D%20%5Cright%20%5D%5E2%7D%7B%5BNi%5E%7B2+%7D%5D%5E3%7D)
(b) With increase in temperature, the greater inter-ionic attraction retard the motion of the ions and therefore the molar conductivity falls in case of both strong and weak electrolytes.
The limiting molar conductivity
for weak electrolyte can be calculated by using Kohlrausch's Law.