R Of Helium



Helium Black is designed with premium materials for all golfers looking for a lightweight shaft structure with extreme stability. Divide the molecular weight of Helium (4.003 g/mol) into R, the universal gas constant, which is equal to 8.31447 Pa m^3/K/mol. Helium is also the gas that allows even the richest baritone to speak like a duck. A popular party trick involves inhaling a small amount of helium from a helium balloon. Because of its low Specific Gravity, helium resonates differently around the vocal cords, dramatically changing the pitch of the voice.

Chemical, Physical and Thermal Properties of Helium - He

Specific
  • 1 cubic inch of Helium weighs 0.00010318 ounce oz Helium weighs 0.0001785 gram per cubic centimeter or 0.1785 kilogram per cubic meter, i.e. Density of helium is equal to 0.1785 kg/m³; at 0°C (32°F or 273.15K) at standard atmospheric pressure.
  • The Helium 1 creating a featherstick for a fire. His company’s philosophy is simple, “Every blade is made to use with functionality, design, and precision.” Form follows function with R&N Blades and performance is paramount.

Chemical, physical and thermal properties of Helium - He :
(values at 25oC (77oF, 298 K) and atmospheric pressure)

Molecular Weight4.0026
Specific Gravity, air = 10.138
Specific Volume (ft3/lb, m3/kg)97.86, 6.11
Density of liquid at atmospheric pressure (lb/ft3, kg/m3)7.80, 125
Absolute Viscosity (lbm/ft s, centipoises)13.4 10-6, 0.02
Sound velocity in gas (m/s)1015
Specific Heat - cp - (Btu/lboF or cal/goC, J/kgK)1.24, 5188
Specific Heat Ratio - cp/cv1.66
Gas constant - R - (ft lb/lboR, J/kgoC)386, 2077
Thermal Conductivity (Btu/hr ft oF, W/moC)0.086, 0.149
Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - (oF, oK)-452, 4.22
Latent Heat of Evaporation at boiling point (Btu/lb, J/kg)10.0, 23300
Critical Temperature (oF, oK)-450.3, 5.2
Critical Pressure (psia, MN/m2)33.22, -
Critical Volume (ft3/lb, m3/kg)0.231, 0.0144
Flammableno

Follow the links below to get values for the listed properties of helium at varying pressure and temperature:

See also more about atmospheric pressure, and STP - Standard Temperature and Pressure & NTP - Normal Temperature and Pressure,
as well as Thermophysical properties of: Acetone, Acetylene, Air, Ammonia, Argon, Benzene, Butane, Carbon dioxide, Carbon monoxide, Ethane, Ethanol, Ethylene, Hydrogen, Hydrogen sulfide, Methane, Methanol, Nitrogen, Oxygen, Pentane, Propane, Toluene, Water and Heavy water, D2O.

R Value Of Helium

Related Topics

  • Material Properties - Material properties for gases, fluids and solids - densities, specific heats, viscosities and more

R Helium Balloons

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Specific Gas Constant Helium

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