Ammonia - NH3 - Thermodynamic Properties (original) (raw)

Thermodynamic properties of saturated and superheated ammonia R-717 like specific volume, enthalpy and entropy.

Specific volume (v), specific internal energy (u), enthalpy (h), and entropy (s) of saturated and superheated ammonia - NH3 - also known as refrigerant 717.

For full table with Specific Entropy and Superheated Properties - rotate the screen!

Ammonia - NH3 - Thermodynamic Properties

• Ammonia Molecular weight : 17.03 g/mol
• Ammonia Melting point : -78oC
• Ammonia Latent heat of fusion (1,013 bar, at triple point) : 331.37 kJ/kg
• Ammonia Liquid Density (1.013 bar at boiling point) : 682 kg/m3 (250 K : 669 kg/m3) (300 K : 600 kg/m3) (400 K : 346 kg/m3)
• Ammonia Liquid Specific Heat (cp) (250 K : 4.52 kJ/kg.K) (300 K : 4.75 kJ/kg.K) (400 K : 6.91 kJ/kg.K)
• Ammonia Liquid/gas equivalent (1.013 bar and 15oC (59oF)) : 947 vol/vol
• Ammonia Liquid Dynamic (Absolute) Viscosity (223K (-50oC): 3.061 10-4 Ns/m2) (273K (0oC): 2.388 10-4 Ns/m2) (323K (50oC): 1.862 10-4 Ns/m2)
• Ammonia Liquid Thermal Conductivity (250 K : 592 106 kW/m.K) (300 K : 477 106 kW/m.K) (400 K : 207 106 kW/m.K)
• Ammonia Boiling point (1.013 bar) : -33.5oC
• Ammonia Latent heat of vaporization (1.013 bar at boiling point) : 1371.2 kJ/kg
• Ammonia Vapor pressure (at 21oC or 70oF) : 8.88 bar
• Ammonia Critical point - Critical temperature : 132.4oC - Critical pressure : 112.8 bar
• Ammonia Gas Density (1.013 bar at boiling point) : 0.86 kg/m3
• Ammonia Gas Density (1.013 bar and 15oC (59oF)) : 0.73 kg/m3
• Ammonia Gas Compressibility Factor (Z) (the ratio of the actual volume of the gas to the volume determined according to the perfect gas law) (1.013 bar and 15oC (59oF)) : 0.9929
• Ammonia Gas Specific Gravity (air = 1) (1.013 bar and 21oC (70oF)) : 0.597
• Ammonia Gas Specific volume (1.013 bar and 21oC (70oF)) : 1.411 m3/kg
• Ammonia Gas Specific Heat at constant pressure (cp) (1.013 bar and 15oC (59oF)) : 0.037 kJ/(mol.K)
• Ammonia Gas Specific Heat at constant volume (c_v_) (1.013 bar and 15oC (59oF)) : 0.028 kJ/(mol.K)
• Ammonia Gas Ratio of Specific Heats (Gamma: cp/cv) (1.013 bar and 15oC (59oF)) : 1.309623
• Ammonia Gas Dynamic Viscosity (1.013 bar and 0oC (32oF)) : 0.000098 Poise
• Ammonia Gas Thermal conductivity (1.013 bar and 0oC (32oF)) : 22.19 mW/(m.K)
• Ammonia Gas Solubility in water (1.013 bar and 0oC (32oF)) : 862 vol/vol
• Ammonia Gas Auto ignition temperature : 630oC

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