A thermodynamic study of urea-water mixture by VPO

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Calin, S
Telea, C
Chilom, G
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O6 [化学];
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0703 ;
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The thermodynamic behaviour of urea-water system was studied by vapour pressure osmometry (VPO) at temperatures ranging within 303-323 K over a concentration range of 0.2-1 molal. The molal osmotic coefficients, the activity coefficients and the following excess functions: Gibbs free energy, enthalpy and entropy were calculated. The results were compared with data obtained by the isopiestic method.
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页码:85 / 92
页数:8
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