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이성분아세톤 물계의 과잉 열역학 성질에 관하여
Excess Thermodynamic Properties for the Acetone-Water System
HWAHAK KONGHAK, February 1977, 15(1), 33-40(8), NONE
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Abstract
아세톤-물계에 대하여 15, 25, 35 및 45 ℃에서 몰분율에 따른 혼합열을 측정하였다. 측정된 혼합열 데이터로부터 NRTL식을 사용하여 아세톤-물 분자간의 interaction energy를 계산하였고 interaction energy가 혼합열에 미치는 영향을 검토하였다. 한편 혼합열실험치로부터 ∆GE와 ∆SE을 계산하였으며 계산된 ∆GE로부터 등온기액평형치를 얻었다. 이를 문헌치와 비교한 결과 좋은 일치를 얻었다.
Heats of mixing were measured for the acetone-water system at 15, 25, 35 and 45 ℃, respectively. Interaction energies between the water and acetone molecules were calculated by the NRTL equation, and the effects of the interaction energy on heats of mixing were discussed. The excess Gibbs free energy and the excess entropy were calculated from the experimental data for the heat of mixing and isothermal vapor-liquid equilibria were predicted from the calculated values of excess Gibbs free energy. The results turned out to be in good agreement with literature values.
