How to tell if you're dealing with an ideal gas?

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Nadine Schenker 3E
Posts: 7
Joined: Wed Sep 21, 2016 2:58 pm

How to tell if you're dealing with an ideal gas?

Postby Nadine Schenker 3E » Thu Mar 16, 2017 11:32 am

In the winter 2014 final, question 2b, you're asked to calculate the final pressure of a sealed container of gases. The equation used is PV=nRT, but the problem does not specify that the gases (Argon and Neon) behave as ideal gases. How would you know that they do in order to use the ideal gas law?

Stephanie Demo 2N
Posts: 11
Joined: Thu Sep 29, 2016 3:00 am

Re: How to tell if you're dealing with an ideal gas?

Postby Stephanie Demo 2N » Thu Mar 16, 2017 1:30 pm

Argon and Neon are both noble gases, and I believe it is standard to treat noble gases like ideal gases.

Nadine Schenker 3E
Posts: 7
Joined: Wed Sep 21, 2016 2:58 pm

Re: How to tell if you're dealing with an ideal gas?

Postby Nadine Schenker 3E » Fri Mar 17, 2017 8:03 pm

Okay! Thank you!!

EmilyLeibovitch2E
Posts: 29
Joined: Wed Nov 18, 2015 3:00 am

Re: How to tell if you're dealing with an ideal gas?

Postby EmilyLeibovitch2E » Sat Mar 18, 2017 10:44 pm

I think in 14B we have only really used ideal gasses in problems, so it's safe to assume it is an ideal gas, even if it only says gas.


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