大学化学 >> 2022, Vol. 37 >> Issue (6): 2107062.doi: 10.3866/PKU.DXHX202107062

化学实验 上一篇    下一篇

微流量调节阀在液体饱和蒸气压测定实验中的应用

张帅, 张健, 边绍伟, 赵亚萍, 沈丽, 咸春颖()   

  • 收稿日期:2021-07-16 录用日期:2021-09-07 发布日期:2021-10-19
  • 通讯作者: 咸春颖 E-mail:xiancy@dhu.edu.cn
  • 作者简介:咸春颖, Email: xiancy@dhu.edu.cn
  • 基金资助:
    东华大学2021年度校级一流本科课程(DHYLA-2021-27);上海市教育委员会本科重点课程项目(物理化学);东华大学课程思政建设项目(105-20-0008058)

Application of a Micro-Flow Regulating Valve in Saturated Vapor Pressure Measurements

Shuai Zhang, Jian Zhang, Shaowei Bian, Yaping Zhao, Li Shen, Chunying Xian()   

  • Received:2021-07-16 Accepted:2021-09-07 Published:2021-10-19
  • Contact: Chunying Xian E-mail:xiancy@dhu.edu.cn

摘要:

在液体饱和蒸气压测定实验装置中,引入微流量调节阀对缓冲储气罐进行改造,使导入系统的空气流量精确可控,解决了调压时需反复调节、操控难、空气倒灌等问题,缩短了实验时间。使用该装置以静态法测定了乙醇的饱和蒸气压,在实验教学中获得了良好的效果。

关键词: 物理化学实验, 微流量调节阀, 摩尔汽化热, 静态法

Abstract:

A micro-flow regulating valve was introduced into an experimental device used for liquid vapor pressure measurements, to enable the accurate and control of the pressure of the system and address the problem of backward air flow into the experimental system. Desirable results were obtained in the experimental process with the use of the micro-flow regulating valve in the experimental device.

Key words: Physical chemistry experiment, Micro-flow regulating valve, Molar heat of vaporization, Static method

MSC2000: 

  • G64