Progogine-Defay Ratio for Systems with More Than One Order Parameter.

Abstract

The Progogine-Defay ratio, Pi delta Cp Delta Kappa/TV(delta alpha) squared, has been derived for systems whose states need to be specified in terms of a number of order parameters by considering the conditions of tangency of the equilibrium free energy surface and the free energy surface for constant values of the order parameters. It is shown that Pi > 1. The relevance of the Progogine-Defay ratio to the kinetics of the structural relaxation in glass is discussed.

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1975
Accession Number
ADA013346

Entities

People

  • Cornelius T. Moynihan
  • Prabhat K. Gupta

Organizations

  • The Catholic University of America

Tags

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Dynamics
  • Energy
  • Free Energy
  • Kinetics
  • Physical Properties

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Mathematical Modeling and Probability Theory.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.