In terms of viscosity,, explain why water and oil dont blend ?

I know that its mainly because separating from each other is thermodynamically more stable than mixing with each other.


But how can you explain this phenomenon in terms of viscosity??In terms of viscosity,, explain why water and oil dont blend ?
We don't really talk about viscosity to explain why water and oil don't blend, perhaps a more suitable term would be density. Water is denser than oil hence oil floats on water. Another important point is water is polar while oil is non-polar and hydrophobic, therefore they don't have much interactions and mix with each other.In terms of viscosity,, explain why water and oil dont blend ?
The blending of water and oil has nothing to do with viscosity actually.





viscosity is defined as the friction within a liquid.


This is a polarity problem - Water is highly polar and oils are non polar. (oils are triglycerides and do not have any polar bonds)





As only polar compounds dissolve in polar and non polar in non polar, Oils and water do not mix.
Viscosity has absolutely no bearing on the non- blending of oil and water. Therfore it is impossible to explain why water and oil dont blend , in terms of viscosity.