Thermodynamic
properties of the binary mixture of water and <Emphasis Type="Italic">n</Emphasis>-butanol |
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Authors: | Z Nan Z-C Tan |
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Institution: | (1) Department of Chemistry, Qufu Normal University, Qufu Shandong, P. R. China, 273165;(2) Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, P. R. China, 116023 |
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Abstract: | The molar heat capacities of the binary mixture
composed of water and n-butanol were measured with an adiabatic calorimeter
in the temperature range 78–320 K. The functions of the heat capacity
with respect to thermodynamic temperature were established. A glass transition,
solid–solid phase transition and solid–liquid phase transition
were observed. The corresponding enthalpy and entropy of the solid–liquid
phase transition were calculated, respectively. The thermodynamic functions
relative to a temperature of 298.15 K were derived based on the relationships
of the thermodynamic functions and the function of the measured heat capacity
with respect to temperature. |
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Keywords: | adiabatic calorimetry heat capacity low temperature n-butanol water |
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