Internal Energy of Ideal Gas

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Internal Energy of Ideal Gas

Postby 404975170 » Sun Feb 03, 2019 11:00 pm

I know the equation is U=3/2nRT but in one of the homework problems another equation with U=5/2nRT is mentioned. Does anyone know what the purpose of this second equation is for?

Noah Cook 3O
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Re: Internal Energy of Ideal Gas

Postby Noah Cook 3O » Mon Feb 04, 2019 12:35 am

The value of 3/2nRT is for monoatomic gases, whereas the 5/2nRT is for diatomics. It is due to the additional axes in diatomics. Can read more about it at if you want.

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