CHEM 3615H CHAP 20

E f v according to the stokes law the friction

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Unformatted text preview: case of condensed phases, the existence of very strong intermolecular interactions has not allowed us to develop a similar set of theories as for the ideal gas case. For liquids, we know that the viscosity is strongly influenced by temperature, since temperature affects both molecular mobility and density. In the case of liquids and solids, we will in particular remember that for the vast majority of liquids (except polymer liquids close to their glass transition temperature), the dependence of viscosity on temperature can be represented by: log10 η = A/T + B where A and B are constants that depend on the substance. A is always positive (implying that the viscosity of a liquid always decreases with increasing temperature). The diffusion of molecules in solids and...
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