4.00g/(mol) You can obtain the molar mass of any chemical element by using the periodic table: The molar mass is usually listed underneath the chemical symbol. The units associated with molar mass is grams per mole (g/(mol)). Helium gas is a non-toxic and non-combustible gas that is obtained from natural gas. Helium Gas was first detected in sun. It is available abundantly and is the second lightest gas seen. 4.00g / mol is the molar mass of helium. Dsp plugin for mac.
Specific heat at constant volume, specific heat at constant pressure, specific heat ratio and individual gas constant - R - common gases as argon, air, ether, nitrogen and many more .
The specific heat (= specific heat capacity) at constant pressure and constant volume processes, and the ratio of specific heats and individual gas constants - R - for some commonly used 'ideal gases', are in the table below (approximate values at 68oF (20oC) and 14.7 psia (1 atm)).
Helium-3 atom is the stable isotope of helium with relative atomic mass 3.016029. The least abundant (0.000137 atom percent) isotope of naturally occurring helium.It contains a helion.
For conversion of units, use the Specific heat online unit converter.
See also tabulated values of specific heat capacity of food and foodstuff, metals and semimetals, common liquids and fluids, common solids and other common substances as well as values of molar heat capacity of common organic substances and inorganic substances.
Molar Mass Table
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| Gas or Vapor | Formula | Specific Heat | Specific Heat Ratio | Individual Gas constant - R - | ||||
|---|---|---|---|---|---|---|---|---|
| cp (kJ/(kg K)) | cv (kJ/(kg K)) | cp (Btu/(lbmoF)) | cv (Btu/(lbmoF)) | κ = cp / cv | cp - cv (kJ/(kg K)) | cp - cv (ft lbf/(lbmoR)) | ||
| Acetone | (CH3)2CO | 1.47 | 1.32 | 0.35 | 0.32 | 1.11 | 0.15 | |
| Acetylene | C2H2 | 1.69 | 1.37 | 0.35 | 0.27 | 1.232 | 0.319 | 59.34 |
| Air | 1.01 | 0.718 | 0.24 | 0.17 | 1.40 | 0.287 | 53.34 | |
| Alcohol (ethanol) | C2H5OH | 1.88 | 1.67 | 0.45 | 0.4 | 1.13 | 0.22 | |
| Alcohol (methanol) | CH3OH | 1.93 | 1.53 | 0.46 | 0.37 | 1.26 | 0.39 | |
| Ammonia | NH3 | 2.19 | 1.66 | 0.52 | 0.4 | 1.31 | 0.53 | 96.5 |
| Argon | Ar | 0.520 | 0.312 | 0.12 | 0.07 | 1.667 | 0.208 | |
| Benzene | C6H6 | 1.09 | 0.99 | 0.26 | 0.24 | 1.12 | 0.1 | |
| Blast furnace gas | 1.03 | 0.73 | 0.25 | 0.17 | 1.41 | 0.3 | 55.05 | |
| Bromine | Br2 | 0.25 | 0.2 | 0.06 | 0.05 | 1.28 | 0.05 | |
| Butane | C4H10 | 1.67 | 1.53 | 0.395 | 0.356 | 1.094 | 0.143 | 26.5 |
| Carbon dioxide | CO2 | 0.844 | 0.655 | 0.21 | 0.16 | 1.289 | 0.189 | 38.86 |
| Carbon monoxide | CO | 1.02 | 0.72 | 0.24 | 0.17 | 1.40 | 0.297 | 55.14 |
| Carbon disulphide | CS2 | 0.67 | 0.55 | 0.16 | 0.13 | 1.21 | 0.12 | |
| Chlorine | Cl2 | 0.48 | 0.36 | 0.12 | 0.09 | 1.34 | 0.12 | |
| Chloroform | CHCl3 | 0.63 | 0.55 | 0.15 | 0.13 | 1.15 | 0.08 | |
| Coal gas | 2.14 | 1.59 | ||||||
| Combustion products | 1 | 0.24 | ||||||
| Ethane | C2H6 | 1.75 | 1.48 | 0.39 | 0.32 | 1.187 | 0.276 | 51.5 |
| Ether (diethyl ether) | (C2H5)2O | 2.01 | 1.95 | 0.48 | 0.47 | 1.03 | 0.06 | |
| Ethylene | C2H4 | 1.53 | 1.23 | 0.4 | 0.33 | 1.240 | 0.296 | 55.08 |
| Chlorodifluoromethane, R-22 | CHClF2 | 1.18 | ||||||
| Helium | He | 5.19 | 3.12 | 1.25 | 0.75 | 1.667 | 2.08 | 386.3 |
| Hexane | C6H14 | 1.06 | ||||||
| Hydrochloric acid | 0.795 | 0.567 | ||||||
| Hydrogen | H2 | 14.32 | 10.16 | 3.42 | 2.43 | 1.405 | 4.12 | 765.9 |
| Hydrogen Chloride | HCl | 0.8 | 0.57 | 0.191 | 0.135 | 1.41 | 0.23 | 42.4 |
| Hydrogen Sulfide | H2S | 0.243 | 0.187 | 1.32 | 45.2 | |||
| Hydroxyl | OH | 1.76 | 1.27 | 1.384 | 0.489 | |||
| Krypton | Kr | 0.25 | 0.151 | |||||
| Methane | CH4 | 2.22 | 1.70 | 0.59 | 0.45 | 1.304 | 0.518 | 96.4 |
| Methyl Chloride | CH3Cl | 0.240 | 0.200 | 1.20 | 30.6 | |||
| Natural Gas | 2.34 | 1.85 | 0.56 | 0.44 | 1.27 | 0.5 | 79.1 | |
| Neon | Ne | 1.03 | 0.618 | 1.667 | 0.412 | |||
| Nitric Oxide | NO | 0.995 | 0.718 | 0.23 | 0.17 | 1.386 | 0.277 | |
| Nitrogen | N2 | 1.04 | 0.743 | 0.25 | 0.18 | 1.400 | 0.297 | 54.99 |
| Nitrogen tetroxide | N2O4 | 4.69 | 4.6 | 1.12 | 1.1 | 1.02 | 0.09 | |
| Nitrous oxide | N2O | 0.88 | 0.69 | 0.21 | 0.17 | 1.27 | 0.18 | 35.1 |
| Oxygen | O2 | 0.919 | 0.659 | 0.22 | 0.16 | 1.395 | 0.260 | 48.24 |
| Pentane | C5H12 | 1.07 | ||||||
| Propane | C3H8 | 1.67 | 1.48 | 0.39 | 0.34 | 1.13 | 0.189 | 35.0 |
| Propene (propylene) | C3H6 | 1.5 | 1.31 | 0.36 | 0.31 | 1.15 | 0.18 | 36.8 |
| Water Vapor Steam 1 psia. 120 – 600 oF | H2O | 1.93 | 1.46 | 0.46 | 0.35 | 1.32 | 0.462 | |
| Steam 14.7 psia. 220 – 600 oF | H2O | 1.97 | 1.5 | 0.47 | 0.36 | 1.31 | 0.46 | |
| Steam 150 psia. 360 – 600 oF | H2O | 2.26 | 1.76 | 0.54 | 0.42 | 1.28 | 0.5 | |
| Sulfur dioxide (Sulphur dioxide) | SO2 | 0.64 | 0.51 | 0.15 | 0.12 | 1.29 | 0.13 | 24.1 |
| Xenon | Xe | 0.16 | 0.097 | |||||
Molar Mass Of Helium Gas
- κ = cp / cv - the specific heat capacity ratio
- cp = specific heat in a constant pressure process
- cv = specific heat in a constant volume process
For conversion of units, use the Specific heat online unit converter.
See also tabulated values of specific heat of food and foodstuff, metals and semimetals, common liquids and fluids, Common solids and other common substances as well as values of molar heat capacity of common organic substances and inorganic substances.
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