Which statements are generally correct regarding viscosity and the validity of Stokes' law?
Select all that apply

Question

Which statements are generally correct regarding viscosity and the validity of Stokes' law?

G1 Physics · Accepted Answer

For most liquids, increasing temperature reduces intermolecular cohesive resistance, so viscosity decreases. For gases, increasing temperature increases molecular momentum transfer and generally increases viscosity. Stokes' law applies to creeping flow, which requires very low Reynolds number. It is not suitable for strongly turbulent wake-dominated flow. Therefore all four statements are correct.