液体饱和蒸气压测定实验装置的优化设计  

Optimal Design of the Experimental Device for Liquid Vapor Pressure Measurement

作　　者：应柳枝[1] 薛茗月[2] 

机构地区：[1]湛江师范学院广东高校新材料工程技术开发中心,广东湛江524000 [2]桂林师范高等专科学校化学与工程技术系,广西桂林541002

出　　处：《实验科学与技术》2009年第3期156-157,共2页Experiment Science and Technology

摘　　要：介绍了对原有液体饱和蒸气压测定装置的改造设计思路和方案。经过改进的装置,克服了原装置平衡管内液体容易暴沸、空气容易倒灌以及原温度计给实验带来的读数复杂的缺点;同时使用该装置测定了环己烷在60～80℃内不同温度的饱和蒸气压值,并根据测定的数据计算得到了环己烷在这一温度范围内的平均摩尔汽化热。结果表明:新装置使实验操作易于控制,提高了测量精度,加快了实验速度,降低了实验失败率,同时也减少了实验室的环境污染。This paper describes the idea and project of a brand new design for vapor pressure and average gasification enthalpy testing instrument . After the installment be improved, problems as ： the liquid is easy to storm boil, the air is easy to flow in backward in the original installment, are solved and Complex reading which in the original thermometer of the experiment be overcome. The instrument is introduced to determine saturated vapor pressure of eyelohexane, from which average molar gasification enthalpy of cyclohexane are deduced under different temporature from 60 ~ 80 ~C. The results indicate that the easy-to-control operation, high precision, high experiment speed, less odds to fail and less pollution to laboratory be offered by the new instrument.

关 键 词：饱和蒸汽压 实验装置 改进 平均摩尔汽化热 

分 类 号：O4-33[理学—物理] G482[文化科学—教育学]