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%I A272002 #26 Apr 02 2025 16:11:20 %S A272002 2,0,7,8,6,1,5,6,5,4,5,3,8,3,1 %N A272002 Decimal expansion of Cp(1), the molar specific heat of an atomic ideal gas at constant pressure. %C A272002 Also the decimal expansion of the molar specific heat of an ideal gas consisting of molecules with 5 degrees of freedom at constant volume. %C A272002 The molar specific heat of an ideal gas consisting of molecules with n degrees of freedom at constant pressure and volume can be calculated respectively with the following formulae: %C A272002 - Cv(n) = n/2 R; %C A272002 - Cp(n) = (1 + n/2) R; %C A272002 Where R = Cp(n) - Cv(n) = A070064 is the molar gas constant. %C A272002 Molecules of a monatomic gas have 3 degrees of freedom. Diatomic and polyatomic molecules can have additional degrees of freedom. %H A272002 Wikipedia, <a href="https://en.wikipedia.org/wiki/Molar_heat_capacity">Molar heat capacity</a>. %F A272002 Cp(1) = (1 + 3/2) * R = 5/2 * A070064. %F A272002 Cp(1) = Cv(1) + R = A272001 + A070064. %e A272002 Cp(1) = 20.7861565453831 J mol^-1 K^-1. %Y A272002 Cf. A070064, A272001, A272003, A272004, A272005. %K A272002 cons,nonn,fini,full %O A272002 2,1 %A A272002 _Natan Arie Consigli_, Jul 06 2016 %E A272002 Edited by _Andrey Zabolotskiy_, Mar 28 2025