Chapter 4: Problem 93
\begin{aligned} &\text { Suppose that a reaction has } \Delta H=-40 \mathrm{~kJ} \text { and } \Delta S=-50 \mathrm{~J} / \mathrm{K} \text { . At what temperature range will it } \\ &\text { change from spontaneous to non-spontaneous? } \\ &\begin{array}{llll} \text { (a) } 0.8 \mathrm{~K} \text { to } 1 \mathrm{~K} & \text { (b) } 799 \mathrm{~K} \text { to } 800 \mathrm{~K} & \text { (c) } 800 \mathrm{~K} \text { to } 801 \mathrm{~K} & \text { (d) } 799 \mathrm{~K} \text { to } 801 \mathrm{~K} \end{array} \end{aligned}
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