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File:Ortho-para H2 energies.jpg

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Summary

Description The energies of ortho- and parahydrogen and two significant mixtures (unit on y-axis is kelvin). The equilibrium mixture is that obtained when a catalyst is present to allow for ortho-para interconversion. 3:1 is the ortho:para ratio at room temperature that will persist if no catalyst is present during cooling. Unfortunately, the label on the y-axis is wrong: it is not “molar rotational energy E/R” but “rotational energy ER/kB (K)”
Source Own work
Author Gadolinist

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current19:10, 18 June 2009Thumbnail for version as of 19:10, 18 June 20092,312 × 2,292 (410 KB)Gadolinist{{Information |Description= |Source=self-made |Date= |Author= Gadolinist |Permission= |other_versions= }}

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