Gas Specific Heat
Gas Specific Heat
(OP)
Can anyone help me with understanding how gas properties (espicially specific heat) are affected by pressure. I am looking for only quantitative help (ie equations relating thermophysical properties to gas pressure).
If anyone can help or refer me to something i greatly appriciate it.
If anyone can help or refer me to something i greatly appriciate it.





RE: Gas Specific Heat
This should get going in the right direction.
RE: Gas Specific Heat
David
RE: Gas Specific Heat
RE: Gas Specific Heat
(∂Cp/∂P)T = -T(∂2V/∂T2)P
and integrating between, say, 1 atm absolute and P, at constant temperature one can obtain:
ΔCp = - T∫∂2V/∂T2)PdP.
And,
(∂Cv/∂V)T = T(∂2P/∂T2)V
Therefore, applying equations of state for real gases, these molar values can be estimated.
RE: Gas Specific Heat
The most astonishing consequence of the table of Cv in the CRC handbook is the absence of significant contributions due to vibrational motion of atoms.
This is why there is little change in Cv in gases.
RE: Gas Specific Heat
RE: Gas Specific Heat
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