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Gas Viscosity & Temperature Analysis

The document asks two questions about viscosity and shear stress in fluids. It first asks why the viscosity of gases increases with temperature, then asks whether viscosity increases or decreases if the initial rate of change of viscosity is greater than the final rate of change, and whether shear stress is proportional to rate of deformation or velocity gradient.

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Ahsan Junaid
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33 views1 page

Gas Viscosity & Temperature Analysis

The document asks two questions about viscosity and shear stress in fluids. It first asks why the viscosity of gases increases with temperature, then asks whether viscosity increases or decreases if the initial rate of change of viscosity is greater than the final rate of change, and whether shear stress is proportional to rate of deformation or velocity gradient.

Uploaded by

Ahsan Junaid
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Group member - A

Name: __________________ Roll No.____________________

Why Viscosity of gases (highlighted in


the figure) increasing with the
increase in temperature?

Consider a fluid’s viscosity is changing due to some factors . If


𝜕𝛽𝑖𝑛𝑖𝑡𝑖𝑎𝑙 > 𝜕𝛽𝑓𝑖𝑛𝑎𝑙 . Explain whether the viscosity is increasing or
decreasing? Also, comment whether shear stress in fluids is
proportional to rate of deformation or velocity gradient (refer to figure
below)?

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