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A calculation for the viscosity of fluids by using van der Waals equation of state |
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| Authors: | Tong-Seek Chair Wonsoo Kim Hyungsuk Pak Mu Shik Jhon |
| Affiliation: | (1) Department of Chemistry, Korea University, 136-701 Seoul, Korea;(2) Hong Ik Technical College, Seoul, Korea;(3) Seoul National University, Seoul, Korea;(4) Korea Advanced Institute of Science and Technology, Seoul, Korea |
| Abstract: | A new equation for the viscosity of fluid is presented by considering that the viscosity is equal to the product of the shear pressure and the shear relaxation time. The shear pressure and the shear relaxation time are calculated thermodynamically by applying the van der Waals model for fluids. The calculated viscosities for various simple substances are in good agreements with those of the observed values through liquid-critical point-gas region. |
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