| 학회 | 한국화학공학회 |
| 학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 | 18권 2호, p.2142 |
| 발표분야 | 열역학 |
| 제목 | Excess Molar Enthalpies and Excess molar Volumes of Binary Mixtures of 1,2-dichloropropane with 2-pentanone and 3-pentanone at T=298.15 K and P=101.3 kPa |
| 초록 | The excess molar enthalpies HE and excess molar volumes VE at T=298.15 K and atmospheric pressure for the binary systems of 1,2-dichloropropane (1,2-DCP) with 2-pentanone and 3-pentanone have been determined from density and heat flux measurements using a digital vibrating-tube densimeter and an isothermal micro-calorimeter with flow-mixing cell, respectively. Both HE and VE values of the binary mixtures are negative over the whole composition range, which could be explained by considering structural isomeric effect between 2- and 3-pentanone. The minimum values of HE and VE are varying from -394.4 J∙mol-1 (2-pentanone) to -422.5 J∙mol-1 (3-pentanone) and -0.0975 cm3∙mol-1 (2-pentanone) to -0.1191 cm3∙mol-1 (3-pentanone) around x1 (1,2-DCP) ≡ 0.500, respectively. The experimental values of both HE and VE were fitted to Redlich-Kister equation to correlate the composition dependence of excess properties. In this work, the experimental excess enthalpy data have been also correlated using thermodynamic models (Wilson, NRTL, and UNIQUAC). The experimental results of excess properties have been qualitatively discussed. |
| 저자 | 심효원, 최원석, 김문갑 |
| 소속 | 경북대 |
| 키워드 | Excess Molar Enthalpies; Excess Molar Volumes; Binary Mixtures; Redlich-Kister Equation; Local Composition Models; 1; 2-dichloropropane; 2-pentanone; 3-pentanone |
| 원문파일 | 초록 보기 |
