Hi all, I have a question from a tutorial sheet that I'm stuck with. The question is(adsbygoogle = window.adsbygoogle || []).push({});

Estimate the pressure at which a gas of argon atoms, at a temperature of 300 K, will begin to show deviations from the ideal gas behaviour due to the finite size of the atoms. Answer: Of order 10^9 Pa.

So I tried taylor expanding the hard sphere gas equation: P'(V-b)=NkT, to get P'=P(1+b/V) to first order, where P is the ideal gas pressure. However, I don't know if this is the right approach or just what to do next really. Could someone point me in the right direction please?

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# Deviation of a gas from ideal gas behaviour

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