Gases - Molar Specific Heats
Molar specific heats for some common gases at constant volume.
Approximate molar specific heats at constant volume at room temperature for some common gases:
| Gas | Specific 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 = 1.163×10-3 kWh = 3.088 ft lbf = 3.9683 Btu = 1000 cal
