Predict the Normal Boiling Point of Triethylborane (C₆H₁₅B) Using the Following

Predict the normal boiling point of triethylborane (C₆H₁₅B) using the following data: $\begin{array}{lcc}&\Delta \mathrm{H}^{\circ}{ }_{\mathrm{f}}\left(25^{\circ} \mathrm{C}\right) & \Delta \mathrm{G}^{\circ}_\mathrm{f}\left(25^{\circ} \mathrm{C}\right) \\\hline\mathrm{C}_{6} \mathrm{H}_{15} \mathrm{~B}(\mathrm{l}) & -194.6 \mathrm{~kJ} / \mathrm{mol} & 9.4 \mathrm{~kJ} / \mathrm{mol} \\\mathrm{C}_{6} \mathrm{H}_{15} \mathrm{~B}(\mathrm{g}) & -157.7 \mathrm{~kJ} / \mathrm{mol} & 16.1 \mathrm{~kJ} / \mathrm{mol}\end{array}$

A) 92 ^$\circ$ C
B) -21 ^$\circ$ C
C) 21 ^$\circ$ C
D) 365 ^$\circ$ C
E) 256 ^$\circ$ C

Correct Answer:

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