×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Heat of vaporization.

Heat of vaporization.

Heat of vaporization.

(OP)
Hello,

   I am trying to find a correlation for the heat of vaporization of water versus temperature.

I found this on wikipedia,

http://en.wikipedia.org/wiki/Enthalpy_of_vaporization

but the graph on the right has no correlation displayed. The purple line is what im looking for.

The purpose of this is to build an equation that can calculate the boiling point of water given temp and pressure without having to use a thermo lookup table.


Thank you

RE: Heat of vaporization.

What's wrong with dH=Cp*dT where Cp=f(T) found in many textbooks

RE: Heat of vaporization.

debecker:

The data for those curves were obtained from the Dortmund Data Bank ... which is quite expensive to purchase. If you have access to a good university library, they may have a copy available. The URL of the Dortmund Data Bank is:

http://www.ddbst.com/new/Gmehling_book.htm]

Milton Beychok
(Visit me at www.air-dispersion.com)
.

 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources