Accession Number : ADD095177

Title :   Heat Capacity and Other Thermodynamic Properties of Linear Macromolecules. I. Selenium,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Gaur, Umesh ; Shu, Hua-Cheng ; Mehta, Aspy ; Wunderlich, Bernhard

Report Date : Jan 1981

Pagination or Media Count : 34

Abstract : The heat capacity of selenium from 0 K to 1000 K is reviewed using measurements on 20 samples reported in the literature. A set of recommended data for trigonal, monoclinic, glassy, and molten selenium is derived. Ring-chain equilibrium parameters are critically evaluated. Entropy, enthalpy, and Gibbs energy functions are calculated. Selenium is a model compound for a monoatomic, linear macromolecule. This paper is first in a series which will ultimately cover all heat capacity measurements on linear macromolecules. (Author)

Descriptors :   *SELENIUM, *SPECIFIC HEAT, *THERMODYNAMIC PROPERTIES, CALORIMETRY, CRYSTALS, ENTHALPY, ENTROPY, TEMPERATURE GRADIENTS, HEAT OF FUSION, FREE ENERGY, TRANSITION TEMPERATURE, MACROMOLECULES, LINEARITY, MELTS, DENSITY, TABLES(DATA)

Subject Categories : Physical Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE