The triple point of iodine is at 0.12 atm and 115°C. Thus, liquid I₂ A) is more dense than I₂(s). B) cannot exist above 115°C. C) is liquid at room temperature. D) cannot have a vapor pressure less than 91 torr. E) sublimes at high pressure.

Question

Quizplus · Accepted Answer

The triple point is the only condition under which all three phases can coexist. Below this pressure (91 torr), liquid I2 cannot exist, so it cannot have a vapor pressure less than 91 torr.

The Triple Point of Iodine Is at 0