A fresh look at the Hind Ubbelohde approach: Simple yet effective modification

Abstract

Abstract Viscosity plays an essential role in the study of intermolecular interactions in liquid mixtures. Prediction of properties has gained a lot of significance in the past few months in light of the COVID pandemic, wherein most of the research laboratories are under lockdown and experimental work has come to a standstill. A study of literature shows that for past several years Hind Ubbelohde equation has been considered as a very basic and an elementary predictive model for viscosity prediction. In this investigation we have made an attempt to tweak the Hind Ubbelohde approach. The testing of present model has been carried out on 170 binary, more than 25 multicomponent liquid mixtures over a broad range of temperatures. A comparative study has been carried out employing established predictive equations using Average Absolute Percentage Deviation (AAPD) as the criterion. Grand AAPDs clearly indicate the superiority of the proposed approach in comparison to its original counterpart.