The Vapor Pressures of Monatomic Vapors

The process of GaN single crystal growth by the Na flux method with Na vapor

“…The reaction temperature was measured with a chromel-alumel thermocouple that touched the outer bottom wall of the lower Na crucible. The equilibrium vapor pressure of Na is 45 kPa at 800 1C [18,19]. Some of the Na loaded in the lower crucible still remained after the growth experiment.…”

Single crystal growth of GaN using a Ga melt in Na vapor

“…This means that Na vapor was always present during the crystal growth. The equilibrium vapor pressure of Na at 720 and 800 1C are 18 and 45 kPa, respectively [26,27]. The actual vapor pressure at the Ga melt might be lower because the Na vapor also condensed at the cooler part of the container, mainly on the stainless-steel rod.…”

Heat capacity of liquid mercury between 0-degrees and 450-degrees-C; calculation of certain thermodynamic properties of the saturated liquid and vapor

“…The strictly correct procedure of using in eq 17 t he weighted mean of the logarithms of the isotopic masses would have resulted , in the case of mercury, in a value of the entropy of the vapor t ha t is on ly 0.00005 cal g·atom deg-1 different. (27) From th e th ermodynam ic relation (28) and eq 18, th er e is obtain ed for th e heat capacity of th e gas at cons tan t pressure (29) In tegration of eq 29 wi th r esp ect to T at constant pressure y ields th e en thalpy of th e gas at preSSUl'e P, H (g) = 4. 967970+ 3.186 (10 -5 ) …”