Argon
Chemical, Physical and Thermal Properties of Argon
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Chemical, physical and thermal properties of Argon - Ar :
| Molecular Weight | 39.948 |
| Specific Gravity | 1.38 |
| Specific Volume (ft3/lb, m3/kg) | 9.8, 0.622 |
| Density of liquid at atmospheric pressure (lb/ft3, kg/m3) | 87.0, 1400 |
| Absolute Viscosity (lbm/ft s, centipoises) | 13.4 10-6, 0.02 |
| Sound velocity in gas (m/s) | 322 |
| Specific Heat - cp - (Btu/lboF or cal/goC, J/kgK) | 0.125, 523 |
| Specific Heat Ratio - cp/cv | 1.67 |
| Gas constant - R - (ft lb/lboR, J/kgoC) | 38.7, 208 |
| Thermal Conductivity (Btu/hr ft oF, W/moC) | 0.0102, 0.0172 |
| Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - (oF, oC) | -303, -186 |
| Latent Heat of Evaporation at boiling point (Btu/lb, J/kg) | 70, 163000 |
| Freezing or Melting Point at 1 atm (oF, oC) | -308.5, -189.2 |
| Critical Temperature (oF, oC) | -187.6, -122 |
| Critical Pressure (psia, MN/m2) | 707, 4.87 |
| Critical Volume (ft3/lb, m3/kg) | 0.0299, 0.00186 |
| Flammable | no |
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