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Gases - Molar Specific Heat

Molar specific heats of gases at constant volume

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Approximate molar specific heats at constant volume at room temperature for some common gases:

GasSpecific Heat
- Cv -
(kcal/kmole K)
Argon (Ar) 3.0
Carbon monoxide (CO) 5.02
Chlorine (Cl2) 6.01
Ethane (C2H6) 10.3
Ether ((C2H5)2O) 30.8
Helium (He) 3.02
Hydrogen (H2) 4.88
Mercury vapor (Hg) 3.0
Nitrogen (N2) 6.97
Oxygen (O2) 4.99
Sulfur dioxide (SO2) 7.5
  • 1 kcal = 4186.8 J = 426.9 kp m = 1.163x10-3 kWh = 3.088 ft lbf = 3.9683 Btu = 1000 cal
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  • en: molar specific heat gases constant volume
  • es: los gases de calor específico a volumen constante molares
  • de: molare spezifische Wärme Gase konstantem Volumen
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