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TriKri
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Fluids have viscosity, but do gasses have it? And in that case, what is the viscosity for normal air (I know air isn't one gas)?
pixel01 said:Like liquid, gas has viscosity of course. But only one thing they are different is for liquid, the higher the temperature, the lower the viscosity and for gas, it's opposite.
It is correct. It has to do with momentum transfer between molecules in the gas. Look up Sutherland's formula to see how to calculate a gases viscosity based on temperature.Archosaur said:I don't doubt that you are correct, but could you or someone explain this to me?
pixel01 said:Like liquid, gas has viscosity of course. But only one thing they are different is for liquid, the higher the temperature, the lower the viscosity and for gas, it's opposite.
Viscosity is a measure of a fluid's resistance to flow. It is a property of liquids and gases that describes how easily they can be deformed or moved by an external force.
Yes, all gasses have viscosity, although the level of viscosity may vary. In general, gasses with a higher molecular weight have a higher viscosity.
Viscosity is typically measured using a viscometer, which is a device that determines the force required to move a fluid at a certain rate. The unit of measurement for viscosity is the poise (P) or centipoise (cP).
The viscosity of gasses is affected by temperature, pressure, and molecular weight. Generally, higher temperatures and pressures result in lower viscosity, while higher molecular weights result in higher viscosity.
Yes, viscosity plays a crucial role in our daily lives. For example, it affects the performance of engine oils, the flow of blood in our bodies, and the spread of pollutants in the atmosphere. Understanding the viscosity of gasses is also important in industrial processes and scientific research.