### A chemical reaction, such as HI forming from its …

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Problem 104

A key step in the metabolism of glucose for energy is the isomerization of glucose-- 6 -phosphate $(\mathrm{G} 6 \mathrm{P})$ to fructose 6 -phosphate $(\mathrm{F} 6 \mathrm{P}) : \mathrm{G6P} \quad \rightleftharpoons \mathrm{F6P} ; K=0.510$ at 298 $\mathrm{K}$
(a) Calculate $\Delta G^{\circ}$ at 298 $\mathrm{K}$ .
(b) Calculate $\Delta G$ when $Q$ , the $[\mathrm{F} 6 \mathrm{P}] /[\mathrm{G} 6 \mathrm{P}]$ ratio, equals $10.0 .$
(c) Calculate $\Delta G$ when $Q=0.100$ .
(d) Calculate $Q$ if $\Delta G=-2.50 \mathrm{kJ} / \mathrm{mol}$

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Chapter 20
Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions
CHEMISTRY: The Molecular Nature of Matter and Change 2016

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