A Note on "A Thermodynamic Analysis to Explain the Boiling-Point Isotope Effect for Molecular Hydrogen"

• Lilia Meza-Montes ^[2] ; Peter Hoffmann-Pinther ^[1]
  1. [1] University of Houston - Downtown

     University of Houston - Downtown

     Estados Unidos

     
  2. [2] UAP, México
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 78, Nº 3, 2001, pág. 416
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A simple one-dimensional harmonic oscillator potential well has been used to provide a pedagogical quantitative explanation for college chemistry students for the difference in the boiling points of the three forms of molecular hydrogen. In that scheme the energy levels have an m-1/2 dependence on the molecular mass, m. In this paper we use a more realistic potential to represent intermolecular forces, showing that there is an additional m-1 dependence on the molecular mass and that the temperature differences follow in a more direct manner.