- #1
Xyius
- 508
- 4
Homework Statement
A rigid insulated tank is separated into two rooms by a stiff plate. Room A of 0.5 m3 contains air at 250 kPa, 300 K and room B of 1 m3 has air at 150 kPa, 1000 K. The plate is removed and the air comes to a uniform state without any heat transfer. Find the final pressure and temperature.
Homework Equations
I am pretty sure these are the ones I am going to use.
[tex]PV=mRT[/tex]
[tex]/delta u = c_{v}/delta T[/tex]
The Attempt at a Solution
Well I figured I would find the mass of each gas in their rooms first. So I just used the ideal gas law on both of them..
[tex]m=\frac{PV}{RT} \rightarrow m_{1}=1.452kg,m_{2}=0.523kg[/tex]
Therefore, at the final state the ideal gas equation is known except for T and P. I figured the equation [tex]/delta u = c_{v}/delta T[/tex] might be useful but I do not understand how I could get temperature from this. All I need is one and I can find the other via the ideal gas law.
Thanks! :]