VALUE OF SOME COMMAN GASES

Value of C_p     and C_v  for some common gases.

Name of Gas	Cp (KJ/Kg K)	Cv (KJ/Kg K)	¥ = Cp / Cv
Air	1.000	0.720	1.40
Carbon dioxide (CO2)	0.846	0.657	1.29
Oxygen (O2)	0.913	0.653	1.39
Nitrogen (N2)	1.043	0.745	1.40
Ammonia (NH4)	2.177	1.692	1.29
Carbon monoxide (CO)	1.047	0.749	1.40
Hydrogen (H2)	14.257	10.133	1.40
Argon (A)	0.523	0.314	1.67
Helium (He)	5.234	3.153	1.66
Methane (CH4)	2.169	1.650	1.31