Inverse Power Series Fittings of Temperature Dependence of Thermal Diffusion Factors between Two Components of Hydrogen Isotope Molecules

Abstract

Temperature dependence of thermal diffusion factor of binary isotope mixture of hydrogen with one tracer level component α^[A]≃1.0 _Tab was numerically fitted as an inverse power series of temperature from 25 to 1,500 K so that relative errors are less than 0.01 to approximations of the rough estimate of thermal diffusion factor which was previously reported. Composition dependence of thermal diffusion factor was expressed as a linear function of the c-th power of the mole fraction.

KEYWORDS:

• hydrogen
• hydrogen isotopes
• mixture
• isotope separation
• thermal diffusion factor
• inelastic collision
• polyatomic molecule
• temperature dependence
• composition dependence
• Monchick-Sandler-Mason formula
• thermal diffusion column