Consider the Phase Diagram Shown

Multiple Choice

Consider the phase diagram shown. Choose the statement below that is TRUE.

A) The triple point of this substance occurs at a temperature of 31 °C.
B) At 10 bar of pressure, there is no temperature where the liquid phase of this substance would exist.
C) The solid phase of this substance is higher in density than the liquid phase.
D) The line separating the solid and liquid phases represents the Δ_vapH.