The Effect of Pressure on the Thermodynamic Properties of Propan-1-ol + n-Heptane Mixtures |
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Authors: | Marzena Dzida |
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Institution: | (1) Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland |
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Abstract: | The densities of propan-1-ol + n-heptane have been measured over the whole composition range at atmospheric pressure and at temperatures from 293 to 318 K using a vibrating tube densimeter. The densities and heat capacities for propan-1-ol + n-heptane mixtures at pressures up to 120 MPa and for temperatures ranging from 293 to 318 K were calculated using the speeds of sound measured under elevated pressures, together with the densities and heat capacities at atmospheric pressure. A modified method, based on the suggestion of Davis and Gordon J. Chem. Phys.
46 (1967) , has been applied. The effect of pressure and temperature on the isentropic compressibility, the excess volume, and the excess heat capacity are discussed. |
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Keywords: | pVT high pressure density heat capacity propan-1-ol n-heptane |
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