Home › 2160 › Academic Information › Academic Conferences

Research Day, At Najah National University Nablus Palestine

2160's picture
Thu, 2015-08-27 09:31 — Prof. Issam Rashid Ashqer
Research Title: 
Modification of the Fixman’s Analytic Function in Binary Liquid Mixtures
Authors: 
D. A. Abu Arra
Authors: 
Issam Ashqer
Country: 
Palestine
Date: 
Fri, 2013-11-01
Research Abstract: 
The mode-coupling theory of Fixman failed to explain the experimental behavior of the binary liquid mixtures at critical concentration and above critical temperature. The analytic function of Fixman’s theory was modified in order to get an agreement with the experimental behavior of the binary liquid mixtures at critical concentration and above the critical temperature. Ultrasonic absorption and velocity of some binary liquid mixtures were used to test the validity of the Re-Modified-Fixman’s theory. It is found that the ratio of heat capacities γ_0=C_V/C_p (at constant volume and pressure) of the binary liquid mixtures is the term which plays the role to Re-Modify the Fixman’s theory to get a good agreement with the experimental behavior.