Viscosity and density of fluids.
When the temperature of a liquid increases, its density decreases, so does its viscosity.
so from this, can we say that the density and viscosity of a liquid are related ?
so from this, can we say that the density and viscosity of a liquid are related ?
Replies
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Ramani Aswath
Liquids like silicones have a constant viscosity with temperature change. But the density varies.zaveriWhen the temperature of a liquid increases, its density decreases, so does its viscosity.
The mechanisms are different. Density changes are due to the temperature coefficient of volume. Viscosity is a lot more complex and follows an exponential relationship with temperature.
If you have the time, please wade through these two articles:
1. Temperature Dependence Of Liquid Viscosity
2. Liquids - Densities vs. Pressure and Temperature Change
You are reading an archived discussion.
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