Answered: Water Surface Tension (mN/m) Viscosity…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter12: Fluid Dynamics And Its Biological And Medical Applications

Section: Chapter Questions

Problem 56PE: At what flow rate might turbulence begin to develop in a water main with a 0.200-m diameter? Assume...

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The surface tension and viscosity of water at several different temperatures are given in this table.

(a) As temperature increases, what happens to the surface tension of water? Explain why this occurs, in terms of molecular interactions and the effect of changing temperature.
(b) As temperature increases, what happens to the viscosity of water? Explain why this occurs, in terms of molecular interactions and the effect of changing temperature.

Water
Surface Tension (mN/m) Viscosity (mPa s)
0 °C
75.6
1.79
20 °C
72.8
1.00
60 °C
66.2
0.47
100 °C
58.9
0.28

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