Calculate the temperature and vapor pressure at the triple point of I2 from the following data: the boiling point at normal pressure is 183 0C, the vapor pressure of liquid I2 is 13.33 kPa at 116.5 0C, the heat of fusion is 15.65 kJ/mol, the vapor pressure over solid I2 0.1333 kPa at 38.7 0C.

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