Ideal gas approach valid for this situation?
 

Dear all,

I’m studying a heating at V=ct of a recipient with a geometry like the following:

http://s16.postimg.org/3nvvi9sc5/imagen_problema.png

The heating is from 298K to 363K with an initial pressure of 1 atm.

Using the ideal gas equation I obtain P2=T2/T1*P1

My big question is:

Can I consider the situation using the ideal gas approach?

My doubt is the low heigth of the geometry, only 0.8mm.

Thanks a lot!

and what physical phenomenon should occur for which the ideal gas law would not be valid?? in any case you are much greater than the f.m.p.

I have read that for little molar volumes the ideal gas approach is not valid.

But it is not my molar volume what is little, but only my volume! As far as I know, ideal gas approach is not valid for low temperatures or high pressures.

As FMDenaro pointed out, your geometry is much larger than the molecular mean free path, which will be on the order of 70 nm for your problem. Your pressure and temperature are also neither too low or high.