The Haber process is very important for agricultu…

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Problem 99

Indicate and explain the sign of $\Delta S_{\text { univ }}$ for each process. \begin{equation}\begin{array}{l}{\text { a. } 2 \mathrm\ {H}_{2}(g)+\mathrm{O}_{2}(g) \longrightarrow 2 \mathrm\ {H}_{2} \mathrm{O}(l) \text { at } 298 \mathrm{K}} \\ {\text { b. the electrolysis of } \mathrm{H}_{2} \mathrm{O}(l) \text { to } \mathrm{H}_{2}(g) \text { and } \mathrm{O}_{2}(g) \text { at } 298 \mathrm{K}} \\ {\text { c. the growth of an oak tree from a little acorn }}\end{array}\end{equation}

Answer

A. the spontaneous process shows the sign of $\Delta S_{\text { Univ }}$ as positive. B. the sign of $\Delta S_{\text { Univ }}$ for the electrolysis process will be positive. C. the sign of $\Delta S_{\text { Univ }}$ will be positive.

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