Calculate $\Delta G^{\circ}$ at $25^{\circ} \math…

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Problem 121

Have each group member look up $\Delta H_{\mathrm{f}}^{\circ}$ and $S^{\circ}$ for one substance in the reaction: $3 \mathrm{O}_{2}(g)+6 \mathrm{H}_{2}(g)+6 \mathrm{C}(s,$ graphite) $\longrightarrow$ $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}(s,$ glucose). What is $\Delta H^{\circ}$ for this reaction? What is $\Delta S^{\circ} ?.$ When is $\Delta H_{\mathrm{f}}^{\circ}$ for a substance equal to zero? When is $S^{\circ}$ for a substance equal to zero?

Answer

$\Delta H_{\mathrm{mm}}^{\mathrm{o}}$ for the given reaction is $[-1273.3 \mathrm{kJ} / \mathrm{mol}]$ $\Delta S_{\mathrm{mn}}^{\circ}$ for the given reaction is $\left[-1312.9 \mathrm{Jmol}^{-1}\right]$

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