Modification of Hildebrand's viscosity equation

T. Sridhar, O. E. Potter

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)


The fluidity model of Hildebrand has been modified to account for changes in molecular diameter that occur near the melting point. We show that there is a similarity between the divergence from the fluidity equation and the increase in molecular diameter. Both these phenomena are noticeable only below a reduced temperature of 0.46. It is shown that if the changes in molecular volume are taken into account good agreement with experimental data is obtained.

Original languageEnglish
Pages (from-to)57-60
Number of pages4
JournalThe Chemical Engineering Journal
Issue number1
Publication statusPublished - 1 Jan 1978

Cite this