Heat capacities, enthalpy increments, and derived thermodynamic functions for pyrazine between the temperatures 5 K and 380 K

  • Chirico R
  • Knipmeyer S
  • Steele W
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 3

    Citations

    Citations of this article.

Abstract

Heat capacities and enthalpy increments between the temperatures T ≈ 5K and T ≈ 380K were measured with adiabatic calorimetry for pyrazine. The triple-point temperature, enthalpy of fusion, heat capacities, and derived thermodynamic functions are reported for the solid and liquid phases. Three solid-to-solid phase transitions were observed, and the transition temperatures and enthalpies are reported. All results are compared with literature values. The adiabatic calorimetric results reported here provide key quantities required for thermodynamic consistency analyses, which can provide needed validations for calculational techniques (ab initio, semi-empirical, statistical, group contribution, etc.). Such validations are currently lacking for polyazines, such as pyrazine. © 2003 Elsevier Science Ltd. All rights reserved.

Author-supplied keywords

  • Enthalpy of fusion
  • Heat capacity
  • Phase transition
  • Pyrazine
  • Standard entropy
  • Triple-point temperature

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • R. D. Chirico

  • S. E. Knipmeyer

  • W. V. Steele

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free