Vapor Pressures of the Tritium Liquid Hydrogens Dependence of Hydrogen Vapor Pressure on Mass of the Molecule

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Abstract
The Henry's law constants for HT evaporating from approximately 10−9M solutions in normal H2 and for DT from nD2 were determined by distillation and measuring the radioactivities of the distillate gases. On the basis of Lewis' and Hanson's data showing H2 and D2 to form nearly perfect solutions, the Henry's law constants were taken to represent the vapor pressures of the pure HT and DT liquids. A plot of vapor pressures of various kinds of hydrogen at 20.4°K led to 45±10 mm of Hg as the predicted vapor pressure of liquid nT2 at 20.4°K.

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