Understanding Cycle Process w/ Diatomic Ideal Gas

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SUMMARY

The discussion clarifies that the ideal gas law, expressed as pv = NkT, is applicable to diatomic ideal gases, not just monatomic gases. Participants confirmed that diatomic molecules such as O2 and N2, which are prevalent in air, adhere to this law at low densities. The consensus emphasizes that the ideal gas law is valid for various types of gases, including diatomic ones.

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  • Basic thermodynamics concepts
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Abigale
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Hi,
I try to understand a cycle process with an diatomic ideal Gas.

Question:
Is it possiblie to use the ideal gas law:

[itex]pv=NkT[/itex]

for the diatomic gas?

I thought it is just for monoatomic.

Thx
Abby :redface:
 
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Abigale said:
Is it possiblie to use the ideal gas law:

[itex]pv=NkT[/itex]

for the diatomic gas?
Yes, an ideal gas need not be monatomic.
 
DrClaude is right, of course. Almost all the molecules (O2 and N2) in air are diatomic, and at very low densities air obeys pV = nRT more and more closely.
 
Last edited:

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