| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 | 16권 2호, p.1882 |
| 발표분야 | 열역학 |
| 제목 | Excess Molar Volumes and Excess Molar Enthalpies for the Binary Mixtures of 1,2-dichloropropane with linear sec-alkanols at T=298.15 K and 101.3 kPa |
| 초록 | The excess molar volumes VE and excess molar enthalpies HE at T=298.15 K and atmospheric pressure for the binary systems of 1,2-dichloropropane (1,2-DCP) with linear sec-alkanols (2-pentanol and 3-pentanol) have been determined from density and heat flux measurements by using a digital vibrating-tube densimeter and an isothermal micro-calorimeter, respectively. Both VE and HE values of the binary mixtures are positive over the whole composition range, which could be explained by considering the branched structure of linear sec-alkanols. The maximum values of VE and HE are varying from 0.6073 cm3mol-1 (2-pentanol) to 0.7615 cm3mol-1 (3-pentanol) and 1966.7 Jmol-1 (2-pentanol) to 2312.8 Jmol-1 (3-pentanol) around x1 (1,2-DCP) = 0.50∼0.55, respectively. The experimental results 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) and have been qualitatively discussed. |
| 저자 | 김문갑 |
| 소속 | 경북대 |
| 키워드 | excess molar volume; excess molar enthalpy; 1; 2-dichloropropane; linear sec-alkanols; endothermic effect |
| 원문파일 | 초록 보기 |
