Calculate $\Delta \mathrm{G}^{\circ}$ for the reaction $\mathrm{Mg}_{(s)}+\mathrm{Sn}_{(\mathrm{aq})}^{++} \longrightarrow \mathrm{Mg}_{(\mathrm{mq})}^{++}+\mathrm{Sn}_{(s)}$ if $\mathrm{E}_{ ext {cell }}^0$ is $2.23 \mathrm{~V}$.

Question

Calculate $\Delta \mathrm{G}^{\circ}$ for the reaction $\mathrm{Mg}_{(s)}+\mathrm{Sn}_{(\mathrm{aq})}^{++} \longrightarrow \mathrm{Mg}_{(\mathrm{mq})}^{++}+\mathrm{Sn}_{(s)}$ if $\mathrm{E}_{	ext {cell }}^0$ is $2.23 \mathrm{~V}$.

Aicharya · Accepted Answer

$\begin{aligned} \Delta \mathrm{G}^{\circ} & =-\mathrm{nFE}_{	ext {cell }}^{\circ} \ & =-2 	imes 96500 	imes 2.23 \ & =-430390 \mathrm{~J} \ & =-430.4 \mathrm{~kJ}\end{aligned}$

Calculate $\Delta \mathrm{G}^{\circ}$ for the reaction $\mathrm{Mg}_{(s)}+\mathrm{Sn}_{(\mathrm{aq})}^{++}…

Solution