Explain the terms conductivity and molar conductivity. How are they interrelated?

Arrange the following solutions in the decreasing order of specific conductance.

$$\begin{gathered} \mathrm{i}) 0.01 \mathrm{M} \mathrm{KCl} \\ \mathrm{ii}) 0.005 \mathrm{M} \mathrm{KCl} \\ \mathrm{iii}) 0.1 \mathrm{M} \mathrm{KCl} \\ \mathrm{iv}) 0.25 \mathrm{M} \mathrm{KCl} \\ \mathrm{v}) 0.5 \mathrm{M} \mathrm{KCl} \end{gathered}$$

How will you distinguish between metallic conduction and electrolytic conduction?

The resistance of a conductivity cell when filled with $0.05 \mathrm{M}$ solution of an electrolyte $\mathrm{x}$is$100 \mathrm{\Omega }$ at ${40}^{°}\mathrm{C}$. The same conductivity cell filled with $0.01 \mathrm{M}$ solution of electrolyte$\mathrm{y}$has a resistance of$50 \mathrm{\Omega }$. The conductivity of $0.05 \mathrm{M}$ solution of electrolyte $\mathrm{x}$ is $1.0\times {10}^{-4} \mathrm{S} {\mathrm{cm}}^{-1}$. Calculate cell constant.

Calculate the standard cell potentials of galvanic cell in which the following reactions take place:
 $2\mathrm{C}\mathrm{r}\left(\mathrm{s}\right)+3\mathrm{C}{\mathrm{d}}^{2+}\left(\mathrm{a}\mathrm{q}\right)\to 2\mathrm{C}{\mathrm{r}}^{3+}\left(\mathrm{a}\mathrm{q}\right)+3\mathrm{C}\mathrm{d}$
Calculate the ${∆}_{\mathrm{r}}{\mathrm{G}}^{°}$ and equilibrium constant of the reactions.

${\mathrm{E}}_{{\mathrm{Cr}}^{3+}/\mathrm{Cr}}^{\circ }=-0.74 \mathrm{V}$, ${\mathrm{E}}_{{\mathrm{Cd}}^{2+}/\mathrm{Cd}}^{\circ }=-0.40 \mathrm{V}$.