Specific heats relating to ideal gas properties?

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To determine the specific heats of air and CO2, reference standard thermodynamic tables that provide values for specific heats at constant pressure and volume. The discussion clarifies that since the partition allows heat transfer but does not store energy, the first law of thermodynamics simplifies to U2 - U1 = 0, indicating that the internal energy remains constant. The initial conditions of the gases are provided, including mass, pressure, and temperature. The user realizes they can find the necessary specific heat values in their textbook. This approach highlights the importance of utilizing reliable thermodynamic resources for accurate calculations.
dillonmhudson
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Partition separates two gases in a rigid well-insulated container. Q=0, W=0.

State 1:

Air:
m=1kg
P=500kPa
T=350K

CO_2:
m=3kg
P=200kPa
T=450K

Assume constant specific heats. Assume kinetic and potential energy changes are negligible. Assume the partition between the two gases can transfer heat between each other and the partition cannot hold any energy itself. Assume both behave as ideal gases.

My question is what equation/table do I use to find out what the specific heats of air and CO_2 actually are?

I appreciate any help.

EDIT: Find the final temp using the first law:
Q-W=m(u2-u1)
Q=0
W=0
U2-U1=0
 
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Nevermind. There's a table in my book I can use.
 

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