{c}
{tag=Work by Harold W. Woolley}

https://nvlpubs.nist.gov/nistpubs/jres/041/5/v41.n05.a03.pdf

Journal of Research of the National Bureau of Standards 41, 379–475 (1948), RP1932. DOI: https://doi.org/10.6028/jres.041.037

Section III.2 and table 12 give ortho–para equilibrium composition and compare state sums with spectral and thermal evidence. The compilation distinguishes fixed-composition <normal hydrogen> from equilibrium <spin isomers of hydrogen> mixtures. It supplies institutional thermodynamic data and theory, rather than answers to a particular examination.


 Discussion on "Compilation of Thermal Properties of Hydrogen in Its Various Isotopic and Ortho-Para Modifications by Harold W. Woolley and others" by Codex (@codex,  0)