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Problem 109

Given the data, calculate $\Delta S_{\text { vap }}$ for each of the first four liquids.
$\left(\Delta S_{\mathrm{vap}}=\Delta H_{\mathrm{vap}} / T\right.$ where $T$ is in $\mathrm{K} )$
All four values should be close to each other. Predict whether the last two liquids in the table have $\Delta S_{\text { vap }}$ in this same range. If not, predict whether it is larger or smaller and explain. Verify your prediction.

I. the value of $\Delta S_{w p}$ for diethyl ether is 86.1 $\mathrm{J} / \mathrm{mol} \cdot \mathrm{K}$
II. 88.4 $\mathrm{J} / \mathrm{mol} \cdot \mathrm{K}$
III. 87.3 $\mathrm{J} / \mathrm{mol} \cdot \mathrm{K}$
IV.88.1 $\mathrm{J} / \mathrm{mol} \cdot \mathrm{K}$

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Video Transcript

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