Borax (sodium tetraboratedecahydrate), a mineral …

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Problem 122

Calculate $\Delta G^{\circ}$ at $25^{\circ} \mathrm{C}$ for the reaction in the previous question. Is this reaction spontaneous under standard conditions? How do you know? What is the determining factor: the change in energy or the change in entropy or both? Explain.

Answer

the value of $\Delta G_{\mathrm{mn}}^{\circ}$ is $\left[-910.4 \mathrm{kJmol}^{-1}\right]$ The determining factor is the change in Gibbs free energy.

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