atmospheric pressure boiling-point elevation colloid condensation cooling curve critical temperature degenerate matter e equation of state evaporation fermionic condensate flash evaporation gas heat helium hydrogen bond isobaric process joback method kelvin liquid list of elements by boiling point list of states of matter melting point mount everest natural logarithm phase transition pressure propane purdue university quark-gluon plasma rhenium solid state of matter strange matter supercritical fluid superfluid supersolid system thermal energy triple point tungsten vapor pressure water