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Formula Specific Gas Constant Isobaric specific heat capacity    Isochoric specific heat capacity

Formula
Formula: Specific Gas Constant
Isobaric, Isochoric, Isothermal and Adiabatic Process on the p-V Diagram

Specific gas constant

Unit
The specific gas constant depends on the gas under consideration and, by definition, gives the ratio of the molar gas constant \(R\) to the molar mass \(M_{\text n}\) of a gas.

GasSpecific gas constant \(R_{\text s}\)
Helium (He)\( 2077.1 \, \frac{\mathrm J}{ \mathrm{kg}\, \mathrm{K} } \)
Methane (CH4)\( 518.4 \, \frac{\mathrm J}{ \mathrm{kg}\, \mathrm{K} } \)
Nitrogen (N2)\( 296.8 \, \frac{\mathrm J}{ \mathrm{kg}\, \mathrm{K} } \)
Oxygen (O2)\( 259.8 \, \frac{\mathrm J}{ \mathrm{kg}\, \mathrm{K} } \)
Carbon dioxide (CO2)\( 188.9 \, \frac{\mathrm J}{ \mathrm{kg}\, \mathrm{K} } \)

Isobaric specific heat capacity

Unit
Specific heat capacity at constant pressure \(\mathit{\Pi}\) indicates how much energy must be added to a kilogram of substance to heat it up by 1 Kelvin.

Isochoric specific heat capacity

Unit
Specific heat capacity at constant volume \(V\).