T. Grindley
1979
Citations
0
Influential Citations
2
Citations
Journal
Journal of the Chemical Society, Faraday Transactions
Abstract
Specific volumes and viscosities of 3,3-diethylpentane have been measured between 25 and 150°C and up to 8000 bar. Numerical differentiation of the volumetric data gives values of thermal pressure, (∂P/∂T)V. It is demonstrated that ηV/T1/2 is a function of (V/R)(∂P/∂T)V only and based on the premise of a soft-sphere van der Waals model, this is interpreted to indicate a direct connection between viscosity and the temperature derivative of repulsive energy at constant volume. The correlation is tested by application to mercury, argon, methane etc.