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The standard free energy change (in $J)$ for the reaction $3 \mathrm{Fe}^{2+}(\mathrm{aq})+2 \mathrm{Cr}(\mathrm{s})=2 \mathrm{Cr}^{3+}(\mathrm{aq})+3 \mathrm{Fe}(\mathrm{s})$ given
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$-173,700$
$\mathrm{E}_{\mathrm{Cell}}^{\circ}=\mathrm{SRP}$ cathode - SRP anode $=-0.44-(-0.74)=0.3 \mathrm{~V}$
$\underset{Y C}{\Delta} \mathrm{G}=-\mathrm{nF} \mathrm{E}_{\mathrm{Cel|}}^{\circ}\left(\mathrm{n}=6\right.$ ele $\left.^{-}\right)$
$\underset{Y C}{\Delta} \mathrm{G}=-\mathrm{nF} \mathrm{E}_{\mathrm{Cel|}}^{\circ}\left(\mathrm{n}=6\right.$ ele $\left.^{-}\right)$
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