Properties of Gas
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The properties of different gases are given below:
Carbon dioxide gas
Properties in English units
- Molecular weight: 44.01
- Normal Boiling Point (1 atm)
- Temp. (° F): -109.3
- Latent Heat of Vaporization (BTU/lb): 245.5
- Gas Phase Properties @ 32°F & @1 atm
- Specific Gravity (Air = 1 ): 1.524
- Specific Heat (Cp) (BTU/lb °F): 0.199
- Density (lb/cu. ft): 0.12341
- Liquid Phase Properties @ B P& @ 1 atm
- Specific Gravity (Water) = 1: 1.18
- Specific Heat (Cp) BTU/lb °F:
- Triple Point
- Temp. (°F): 69.9
- Pressure (psia): 75.1
- Critical Point
- Temp. (°F):87.9
- Pressure ( psia ): 1070.6
- Density (lb/cu ft): 29.2
Oxygen
Properties in English units
- Molecular weight: 32.00
- Normal Boiling Point (1 atm)
- Temp. (° F): -297.3
- Latent Heat of Vaporization (BTU/lb): 91.7
- Gas Phase Properties @ 32°F & @1 atm
- Specific Gravity (Air = 1 ): 1.113
- Specific Heat (Cp) (BTU/lb °F): 0.2197
- Density (lb/cu. ft): 0.089212
- Liquid Phase Properties @ B P& @ 1 atm
- Specific Gravity (Water) = 1: 1.14
- Specific Heat (Cp) BTU/lb °F:- 0.4058
- Triple Point
- Temp. (°F): -361.8
- Pressure (psia): 0.02147
- Critical Point
- Temp. (°F): -181.43
- Pressure ( psia ): 731.4
- Density (lb/cu ft): 27.22
Nitrogen
Properties in English units
- Molecular weight: 28.01
- Normal Boiling Point (1 atm)
- Temp. (° F): -320.4
- Latent Heat of Vaporization (BTU/lb): 85.6
- Gas Phase Properties @ 32°F & @1 atm
- Specific Gravity (Air = 1 ): 0.9737
- Specific Heat (Cp) (BTU/lb °F): 0.249
- Density (lb/cu. ft): 0.07807
- Liquid Phase Properties @ B P& @ 1 atm
- Specific Gravity (Water) = 1: 0.808
- Specific Heat (Cp) BTU/lb °F: 0.4877
- Triple Point
- Temp. (°F): -346.0
- Pressure (psia): 1.81
- Critical Point
- Temp. (°F): -232.4
- Pressure ( psia ): 493
- Density (lb/cu ft): 19.6
Hydrogen
Properties in English units
- Molecular weight: 2.02
- Normal Boiling Point (1 atm)
- Temp. (° F): -423
- Latent Heat of Vaporization (BTU/lb): 191.7
- Gas Phase Properties @ 32°F & @1 atm
- Specific Gravity (Air = 1 ): 0.005611
- Specific Heat (Cp) (BTU/lb °F): 0.071
- Density (lb/cu. ft): 2.309
- Liquid Phase Properties @ B P& @ 1 atm
- Specific Gravity (Water) = 1: -434.6
- Specific Heat (Cp) BTU/lb °F: 1.045
- Triple Point
- Temp. (°F): 434.6
- Pressure (psia): 1.045
- Critical Point
- Temp. (°F): -399.93
- Pressure ( psia ): 190.8
- Density (lb/cu ft): 1.88
Natural gas
Physical properties
- Nontoxic
- Lighter than air
- Colorless
- Odorless
- Contributes to a cleaner environment
Chemical Components
| Component | wt. % |
| Methane | 70-90 |
| Ethane | 5-15 |
| Propane and Butane | < 5 |
| CO2, N2, H2S, etc. | Balance |
Methane Properties
| Property | Value |
| Molar mass | 16.0425 g/mol |
| Density and phase | 0.717 kg/m³, gas |
| Solubility in water | 3.5 mg/100 ml (17 °C) |
| Boiling point | -161.6 °C (111.55 K, -258.88 °F) |
| Melting point | -182.5 °C (90.6 K, -296.5 °F) |
| Critical point | 190.5 K (-82.6 °C) at 4.6 MPa (45 atm) |
| Triple point | 90.1 K, 0.117 bar |
Tags:- Natural Gas Properties, Properties Of Natural Gases
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