(물화기실) 화공 및 고분자 기초 실험_Lab1 결과 레포트_Vapor pressure of a pure liquid

소개

"화공 및 고분자 기초 실험_Lab1 결과 레포트_Vapor pressure of a pure liquid"에 대한 내용입니다.

목차

1. Title
2. Result (Data)
3. Discussion
4. Answers for result-lab reports
5. Summary
6. Reference

본문내용

① Approximations in the Clausius-Clapeyron equation.
We assume ∆!"#V$ =V$(g) because of V$(g) ≫V$(l). At this point, a bit error occurs. And we assume that gas is ideal gas, but not real gas.
② Errors on determining boiling point
We observed a boiling point only one person. But there are many bubbles in flask and it can’t observe clearly because of vapor. There was no clear criterion for exactly where it would start boiling, and finding that spot was not even.
③ Make lower pressure
It was difficult to bring it down to the pressure we wanted. In order to reduce the pressure accurately, the equipment must be completely sealed. To seal the experimental instruments, we carefully applied grease oil to each seam. However, this method also has limitations. Even if the pressure was lowered using a vacuum pump, the pressure slowly recovered to atmospheric pressure as time passed. So, when it reached a certain temperature, we lowered the pressure to find the pressure and temperature at which boiling begins.

참고자료

· Chemical Engineering &Polymer Basic Experiments, 2020, Sungkyunkwan University School of Chemical Engineering
· Atkins’ Physical Chemistry, ninth edition, Chapter 6-5~6-8
· https://www2.chemistry.msu.edu/courses/cem419/cem372cyclicvoltammetry.pdf
· A practical beginner’s guid to cyclic voltammetry, Chapel Hill, University of North Carilina (https://pubs.acs.org/doi/pdf/10.1021/acs.jchemed.7b00361)