Specific Heat Ratio - cp /cv 1.66 Gas constant - R - (ft lb/lb oR, J/kg oC) 386, 2077 Thermal Conductivity (Btu/hr ft oF, W/m oC) 0.086, 0.149 Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - (oF, o K) -452, 4.22 Latent Heat of Evaporation at boiling point...
Gasification heat (- 268.926 ℃, 101.325kpa): 20.42kj/kg Specific heat capacity (gas, 25 ℃, 101.325kpa): CP = 5238.3j / (kg · K) CV = 3213.7j / (kg · K) Specific heat ratio (gas, 25 ℃, 101.325kpa): CP / CV = 1.63 Vapor pressure (0.5K): 0.0000022kpa (2.0k): 3.17kpa...
enhancing the performance of fluid power systems, concluding by way of theory and experiment that helium provides a three-fold increase in pressure dynamics from its higher volumetric orifice flow rate (low density) and, to a lesser extent, from its higher bulk modulus (high specific heat ratio...
Specific heat near the lambda point in 4He and 3He-4He mixtures: Test of universality of the critical exponent and the amplitude ratio, and observation of ... The specific heat under saturated vapor pressure of pure 4 He and of six 3 He- 4 He mixtures up to X = 0.545 was measured in...
The corresponding criterion is the value of the ratio lkT/ħu. The conditionlkT/ℏu≫1 (as is the conditionlkT/ℏc≫1 in the electromagnetic case) is essentially the condition for classical behaviour(ℏω≪kTwith ω∼l/uorω∼l/c. It is therefore clear that the ...
Critical pressure: 227 Kpa Specific volume (21.1 ºC, 101.325Kpa) :6.039m3/kg Heat of vaporization (-268.9ºC, 101.325 Kpa) : 20.4KJ/kg Heat of vaporization (-268.9ºC, 101.325 Kpa) : 20.4KJ/kg CV=3.11KJ/(kg.c) Specific heat ratio: Cp/Cv=1.667 Related Products Send ...
Since the specific heat ratio of helium is larger than air, nitrogen and carbon dioxide, the optimum efficiency for helium occurs at the lowest pressure ratio compared with other fluids. However, the decision for suitable cycle configuration is not only hinged on the fluid cycle efficiency ...
Specific Heat (@20°C J/g mol):5.188 Heat of Fusion:0.0138 kJ/mol Evaporation Heat (kJ/mol):0.08 First Ionizing Energy (kJ/mol):2361.3 Lattice Structure:Hexagonal Lattice Constant (Å):3.570 Lattice C/A Ratio:1.633 Crystal Structure:close-packed hexagonal ...
Crust-derived helium dominates in these reservoirs, mantle-derived helium accounts for a high proportion, but generally less than 50%, as seen in the nitrogen-rich gas reservoir of the Huangqiao gas field in the Subei Basin, where helium content exceeds 1.0%, and the ³He/⁴He ratio is...
The ratio of two helium isotopes, helium-3 and helium-4, was higher in these fullerenes than in air. Buckyballs Can Come from Outer Space Only by injecting a neutron beam into a cylindrical chamber filled with superfluid helium-4 chilled almost to absolute zero did he and his colleagues capt...