|WTT User's Guide|
|Previous||Enthalpy of vaporization||Next|
ln(Δhvap/Δhvap°) = b + ∑aiTriln(1 - Tr), i ∈ [0, nterms - 2]
where Δhvap° = 1 kJ/mol and Tr = T/Tc
The basis for this functional form is discussed in  and .
|Enthalpy of vaporization||Up||REFPROP|
©2012 copyright by the US Secretary of Commerce on
behalf of the United States of America. All rights reserved.
The TRC Group is part of the Thermophysical Properties Division in NIST's Material Measurement Laboratory
The National Institute of Standards and Technology is an agency of the U.S. Department of Commerce