Equations other than Ideal Gas Law and Van Der Waals?

  • Thread starter Thread starter Dan B
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Dan B

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I was wondering if there are any other, more accurate equations to find say, pressure, at low temperatures.

More specifically, I need to find the pressure of helium-3 at 2K, with number density n. Obviously, ideal gas law wouldnt work at such temperature, and for the life of me, I cant find the Van Der Waals constants for helium-3, making me assume there are none and another equation is needed.
 
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