What is it about?
The virial coefficients of helium isotopologues (helum-4 and helium-3) are important in many realms of science and engineering at low temperatures, such as thermophysics, liquefaction processes and precision temperature measurements. This Comment introduces some experiment-based virial coefficients of helium-3 and compares them with the state-of-the-art theoretical ones.
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Why is it important?
This Comment shows good agreement between experiment-based values and theoretical ones for the third acoustic virial coefficient. Whereas, for the third density virial coefficient, it shows disagreement between them at lower temperatures.
Perspectives
I hope that this Comment would encourage further efforts to achieve consistency between experiment and theory for the virial coefficients of helium isotopologues.
Kohei Tada
Kyoto Daigaku
Read the Original
This page is a summary of: Comment on “Third density and acoustic virial coefficients of helium isotopologues from ab initio calculations” [J. Chem. Phys. 160, 244305 (2024)], The Journal of Chemical Physics, March 2025, American Institute of Physics,
DOI: 10.1063/5.0253448.
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