What question did this study set out to answer?

To describe the classical equation of state for helium, neon, and argon by determining the repulsive potential functions arising from interacting electron shells.

October 25, 1938Proceedings of the Royal Society of London A Mathematical and Physical Sciences

The classical equation of state of gaseous helium, neon and argon

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RBR. A. BuckinghamCulham Science Centre

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Implication

Theoretical analysis reveals exponential repulsive potentials govern deviations from ideal gas behavior in noble gases, indicating closed electron shell overlap drives high-temperature excess...

Key Points

To describe the classical equation of state for helium, neon, and argon by determining the repulsive potential functions arising from interacting electron shells.
Modeled the repulsive potential between spherically symmetrical atoms using exponential formulations of the form P(r)e^(-r/p) and be^(-r/p).
Evaluated quantum theoretical calculations of closed-shell helium and neon alongside empirical elastic data from rare-gas type ionic cubic crystals.
Showed that excess pressures at all but the lowest temperatures are driven predominantly by strong close-range repulsion from overlapping complete electron shells.
Determined that simplifying the repulsive polynomial to a constant exponential function be^(-r/p) provides an accurate representation over distances near one atomic diameter.

Cite This Study

R. A. Buckingham (1938) studied this question.

synapsesocial.com/papers/6a0d2dac48a82a5ce309a7b4 https://doi.org/10.1098/rspa.1938.0173

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Implication

Theoretical analysis reveals exponential repulsive potentials govern deviations from ideal gas behavior in noble gases, indicating closed electron shell overlap drives high-temperature excess...

The classical equation of state of gaseous helium, neon and argon

Discussion

Member takes

Implication

Key Points

Cite This Study

The classical equation of state of gaseous helium, neon and argon

Discussion

Member takes

Implication

Key Points

Cite This Study

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