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(35 pts) Carbon tetrachloride, CC14, melts at 250 K. Its equilibrium vapor pressures over the pure liquid are 10.54 kPa at 290 K and 74.52 kPa at 340 K. Its

equilibrium vapor pressures over the pure solid is 270 Pa at 232 K and 1090 Pa at 250 K. (a) Estimate the enthalpies of sublimation, fusion, and vaporization, i.e., AsubH°, AfusH° and4apH°. (b) Determine the normal boiling point, T», and entropy of vaporization at the normal boiling point. (c) How does the latter compare to the value predicted from Trouton's rule?

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