Pressure in a 2D Ideal Gas simulation

Question

I am currently creating a 2D ideal gas simulator whereby the user can determine three of the four variables (P, V, n, T) and the gas would adjust accordingly.

I was wondering how I could calculate the pressure within this simulation. I was struggling with how to approach this problem considering how I am attempting to model a 3d scenario in 2d.

Ibrahim A. Sadiq · Answer

since the gas is a 2D one, you most start using
pA=Nm*(mean square velocity)/2

A=area (which is the 2D-volume, indicated in your question as V)
N= # of molecules enclosed in A ( 2D- volume)
hence 
n=N/A

then, the temperature can be estimated using
pA=NkT
where k is Boltzmann constant

Pressure in a 2D Ideal Gas simulation

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