Ethylene boiing point 1

[JJ10]

okay really dumb question but if ethylene has a boiing point of 104 degrees C, at what temperature does it cease to be liquid and become purely vapour

 

[sheiko]

Not a so dumb question.
The boiling/saturation curve is P vs T. So you can't define a boiling point temperature without the associated pressure.
If the boiling point of pure ethylene is 104 degC at atm pressure, then it will change state (liquid to vapor) at that temperature at the atm pressure.

"We don't believe things because they are true, things are true because we believe them."

 

[JJ10]

hey thanks for the info...I am study for an MSc in Process Safety, and I come from an electrical background, so its somewhat of a sharp learning curve.. that's helpful, thanks

 

[25362]

Try the NIST webbook.

 

[JJ10]

Thanks 25362 - that site is really helpful

 

[Latexman]

The normal boiling point for ethylene is -104[sup]o[/sup]C.

Good luck,
Latexman

Need help writing a question or understanding a reply? forum1529

 

[Sandy55]

http://encyclopedia.airliquide.com/...aporPressureGraph/Ethylene_Vapor_Pressure.GIF

The vapour pressure graph at the end of this link should help illustrate Sheiko's point.