Unformatted text preview: The volume of the gas is measured at that pressure. 5. The viscosity of chlorofluorocarbon (CFC) was measured by comparing its rate of flow through a long narrow tube (using Poiseuille’s formula) with that of argon. For the same pressure differential, the same volume of CFC passed through the tube in 72.0 s as argon in 18.0 s. The viscosity of argon at 25 C is 208 μ P; what is the viscosity of CFC? Estimate the molecular diameter of CFC. Take M = 200 g/mol. 6. The diffusion coefficient of I 2 in hexane at 25 C is 4.05 x 109 m 2 s1 . Estimate the time required for an iodine molecule to have a root mean square displacement of 1.0 cm. 7. Calculate the diffusion constant of argon at 25 C and (a) 1.0 Pa (b) 100 kPa (c) 10.0 MPa. If a pressure gradient of 0.20 bar/m is established in a pipe, what is the flow of gas due to diffusion?...
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 Fall '09
 Goux
 Fluid Dynamics, Physical chemistry, Mole, pH, Molecule

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