Which statement is true about phase diagrams?
A) The triple point pressure is always found below 1 atmosphere.
B) The slope of the liquid-solid phase boundary line is typically negative.
C) The triple point temperature is the lowest temperature where a liquid can exist.
D) The critical temperature is lower than the triple point temperature.
E) The critical temperature is lower than the normal boiling point.

Question

Quizplus · Accepted Answer

The triple point temperature is the temperature at which all three phases (solid, liquid, and gas) coexist in equilibrium. It is the lowest temperature at which a substance can exist as a liquid. The triple point pressure can vary depending on the substance, but it is typically found at a low pressure. The slope of the liquid-solid phase boundary line can be positive or negative, depending on the substance. The critical temperature is the temperature above which a substance cannot exist as a liquid, regardless of pressure, and it is typically higher than the normal boiling point.

Which Statement Is True About Phase Diagrams