Home

Citation: Yanhua Lei, Bin Deng. Proof of Monotonicity of Boiling Point–Composition Curve for Ideal Liquid Mixture with Two Components[J]. University Chemistry, ;2023, 38(9): 287-292. doi: 10.3866/PKU.DXHX202211087 shu

Proof of Monotonicity of Boiling Point–Composition Curve for Ideal Liquid Mixture with Two Components

Yanhua Lei ^, ,
Bin Deng

School of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423000, Hunan Province, China

Corresponding author: Yanhua Lei, leiyh_1823@xnu.edu.cn
Received Date: 26 November 2022

Distillation is a typical unit operation for separating liquid mixtures. The temperature–composition curve in the gas–liquid equilibrium phase diagram is important for guiding distillation operations. An ideal liquid mixture with two components was utilized as the study system in this work. We proved that the temperature–composition curve (T–x or T–y) of ideal liquid mixtures with two components is strictly monotonic, regardless of whether the saturated vapor pressure of liquid conforms to the Clausius-Clapeyron equation or Antoine equation. This means that the bubble point temperature and dew point temperature increase monotonously with the increase of lowly volatile substance content.
- Distillation,
- Bubble point equation,
- Dew point equation,
- Raoult's law,
- Ideal liquid mixture
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
1. [1]
  Mei Yan , Rida Feng , Yerdos·Tohtarkhan , Biao Long , Li Zhou , Chongshen Guo . Expansion and Extension of Liquid Saturated Vapor Measurement Experiment. University Chemistry, 2024, 39(3): 294-301. doi: 10.3866/PKU.DXHX202308103
2. [2]
  Houjin Li , Shuanglian Cai , Yuan Zheng , Zhanxiang Liu , Chengshan Yuan , Lin Wu , Guangao Yu , Jie Han , Qingwen Liu , Xin Du , Ying Xiong , Qihan Zhang , Xingwen Sun , Jianrong Zhang , Shuyong Zhang . Basic Operations and Standardization Suggestions for Organic Chemistry Distillation Experiments. University Chemistry, 2025, 40(5): 40-54. doi: 10.12461/PKU.DXHX202411053
3. [3]
  Nannan Cui , Yan Yang , Liling Tang , Xiyun Feng , Weihua Mu . Design and practice of blended physical chemistry teaching incorporating ideological and political education: a case study of “electrochemistry - Nernst equation”. University Chemistry, 2026, 41(7): 45-53. doi: 10.12461/PKU.DXHX202505025
4. [4]
  Haiying Jiang , Huilin Guo , Yongliang Cheng , Tongyu Xu , Jiquan Liu , Mingli Peng . Teaching Design of the Nernst Equation Based on the “Flipped Classroom” Method. University Chemistry, 2024, 39(8): 84-90. doi: 10.3866/PKU.DXHX202312091
5. [5]
  Gengjia Chen , Junjie Ou . Application of the van Deemter Equation in Instrumental Analysis Teaching: A Case of Organic Polymer Monolithic Columns. University Chemistry, 2025, 40(11): 362-368. doi: 10.12461/PKU.DXHX202502003
6. [6]
  Siming Bian , Sijie Luo , Junjie Ou . Application of van Deemter Equation in Instrumental Analysis Teaching: A New Type of Core-Shell Stationary Phase. University Chemistry, 2025, 40(3): 381-386. doi: 10.12461/PKU.DXHX202406087
7. [7]
  Fengmei Wang , Xin Zhang , Hong Yan , Xiangyu Xu , Guirong Wang . Inverted 'Π' Graphic Memory Method for Thermodynamic Basic Equations and the Application in Teaching Practice. University Chemistry, 2025, 40(11): 369-375. doi: 10.12461/PKU.DXHX202412087
8. [8]
  Wenqi Gao , Xiaoyan Fan , Feixiang Wang , Zhuojun Fu , Jing Zhang , Enlai Hu , Peijun Gong . Exploring Nernst Equation Factors and Applications of Solid Zinc-Air Battery. University Chemistry, 2024, 39(5): 98-107. doi: 10.3866/PKU.DXHX202310026
9. [9]
  Gengwei Zhang , Jun Cao . 化学反应动力学方程的AI辅助发现——以蔗糖水解反应为例. University Chemistry, 2026, 41(9): 396-404. doi: 10.12461/PKU.DXHX202508037
10. [10]
  Wenliang Wang , Weina Wang , Sufan Wang , Tian Sheng , Tao Zhou , Nan Wei . “Schrödinger Equation – Approximate Models – Core Concepts – Simple Applications”: Constructing a Logical Framework and Knowledge Graph of Atom and Molecule Structures. University Chemistry, 2024, 39(8): 338-343. doi: 10.3866/PKU.DXHX202312084
11. [11]
  Yunying Wu , Zhilan Mo , Xue Zhou , Yu Yuan , Yunfei Ma , Jing Chen , Gang Tang . Empowering the Digital Transformation of Organic Chemistry Experiments with Sensing Technology: A Case of Atmospheric Distillation, Vacuum Distillation and Fractionation. University Chemistry, 2025, 40(11): 310-317. doi: 10.12461/PKU.DXHX202503078
12. [12]
  Xiangzhen Meng , Chuan Li , Dong Cheng , Changwu Cai , Xinyun Wang . 热力学第一定律和热力学第二定律的综合计算. University Chemistry, 2026, 41(8): 443-452. doi: 10.12461/PKU.DXHX202508019
13. [13]
  Zhongxin YU , Wei SONG , Yang LIU , Yuxue DING , Fanhao MENG , Shuju WANG , Lixin YOU . Fluorescence sensing on chlortetracycline of a Zn-coordination polymer based on mixed ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2415-2421. doi: 10.11862/CJIC.20240304
14. [14]
  Jinyang SUI , Zhonghao NIU , Hao XU , Jingli XIE . Zinc(Ⅱ) coordination polymers from mixed triazole and carboxylate ligands: Synthesis and properties for CO₂ cycloaddition and photocatalytic dye degradation. Chinese Journal of Inorganic Chemistry, 2026, 42(8): 1603-1612. doi: 10.11862/CJIC.20260089
15. [15]
  Wenjun Zheng . Application in Inorganic Synthesis of Ionic Liquids. University Chemistry, 2024, 39(8): 163-168. doi: 10.3866/PKU.DXHX202401020
16. [16]
  Qijia BAI , Xiang GAO , Yihang SHEN , Jiaqi LI , Yang CHEN , Cuie ZHAO . Mixed-size MXene for the application of high-performance transparent zinc-ion hybrid supercapacitors. Chinese Journal of Inorganic Chemistry, 2026, 42(4): 703-712. doi: 10.11862/CJIC.20250331
17. [17]
  Jia Huo , Jia Li , Yongjun Li , Yuzhi Wang . Ideological and Political Design of Physical Chemistry Teaching: Chemical Potential of Any Component in an Ideal-Dilute Solution. University Chemistry, 2024, 39(2): 14-20. doi: 10.3866/PKU.DXHX202307075
18. [18]
  Zhening Lou , Quanxing Mao , Xiaogeng Feng , Lei Zhang , Xu Xu , Yuyang Zhang , Xueyan Liu , Hongling Kang , Dongyang Feng , Yongku Li . Practice of Implementing Blended Teaching in Shared Analytical Chemistry Course. University Chemistry, 2024, 39(2): 263-269. doi: 10.3866/PKU.DXHX202308089
19. [19]
  Xuejie Wang , Guoqing Cui , Congkai Wang , Yang Yang , Guiyuan Jiang , Chunming Xu . Research Progress on Carbon-based Catalysts for Catalytic Dehydrogenation of Liquid Organic Hydrogen Carriers. Acta Physico-Chimica Sinica, 2025, 41(5): 100044-0. doi: 10.1016/j.actphy.2024.100044
20. [20]
  Kai Ye , Lizhong Zhang , Mingyu Zhang , Qinxiong Wu , Kui Wang , Qi Wang . Digital Experiment for the Determination of Liquid Saturated Vapor Pressure. University Chemistry, 2026, 41(1): 227-243. doi: 10.12461/PKU.DXHX202503107

Get Citation

PDF

XML

Metrics

PDF Downloads(2)
Abstract views(1665)
HTML views(225)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return