Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Argon - Thermophysical Properties

Sponsored Links

Argon phase diagram

Chemical, physical and thermal properties of Argon  - Ar :

Argon - Thermophysical Properties
Molecular Weight 39.948
Specific Gravity 1.38
Specific Volume ( ft 3 /lb, m 3 /kg ) 9.8, 0.622
Density of liquid at atmospheric pressure ( lb/ft 3 , kg/m 3 ) 87.0, 1400
Absolute Viscosity ( lb m /ft s, centipoises ) 13.4 10-6 , 0.02
Sound velocity in gas ( m/s ) 322
Specific Heat - c p - ( Btu/lb o F or cal/g oC, J/kgK ) 0.125, 523
Specific Heat Ratio - c p /c v 1.67
Gas constant - R - ( ft lb/lb o R, J/kg oC ) 38.7, 208
Thermal Conductivity ( Btu/hr ft o F, W/m oC ) 0.0102, 0.0172
Boiling Point - saturation pressure 14.7 psia and 760 mm Hg - ( o F, oC ) -303, -186
Latent Heat of Evaporation at boiling point ( Btu/lb, J/kg ) 70, 163000
Freezing or Melting Point  at 1 atm ( o F, oC ) -308.5, -189.2
Critical Temperature ( o F, oC ) -187.6, -122
Critical Pressure ( psia, MN/m2 ) 707, 4.87
Critical Volume ( ft 3 /lb, m 3 /kg ) 0.0299, 0.00186
Flammable no

Follow the link below to get values for the listed properties of argon 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 , Benzene , Butane , Carbon dioxide , Carbon monoxide , Ethane , Ethanol , Ethylene , Helium , Hydrogen , Hydrogen sulfide , Methane , Methanol , Nitrogen , Oxygen , Pentane , Propane , Toluene , Water and Heavy water, D2O .

Argon is a gas at standard conditions. However, at low temperature and/or high pressures the gas becomes a liquid or a solid.

The argon phase diagram shows the phase behavior with changes in temperature and pressure. The curve between the critical point and the triple point shows the argon boiling point with changes in pressure. It also shows the saturation pressure with changes in temperature.


At the critical point there is no change of state when pressure is increased or if heat is added.

The triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.

Sponsored Links

Related Topics

Material Properties

Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.

Related Documents

Acetone - Thermophysical Properties

Chemical, physical and thermal properties of acetone, also called 2-propanone, dimethyl ketone and pyroacetic acid. Phase diagram included.

Argon - Density and Specific Weight

Online calculator, figures and tables showing density and specific weight of argon, Ar, at varying temperature and pressure - Imperial and SI Units.

Benzene - Thermophysical properties

Chemical, physical and thermal properties of benzene, also called benzol. Phase diagram included.

Ethane - Thermophysical Properties

Chemical, Physical and Thermal Properties of Ethane - C2H6.

Ethylene - Thermophysical Properties

Chemical, physical and thermal properties of ethylene, also called ethene, acetene and olefiant gas. Phase diagram included.

Gases - Specific Heats and Individual Gas Constants

Specific heat at constant volume, specific heat at constant pressure, specific heat ratio and individual gas constant - R - common gases as argon, air, ether, nitrogen and many more.

Pentane - Thermophysical Properties

Chemical, physical and thermal properties of pentane, also called n-pentane. Phase diagram included.

Solubility of Gases in Water vs. Temperature

Solubility of Ammonia, Argon, Carbon Dioxide, Carbon Monoxide, Chlorine, Ethane, Ethylene, Helium, Hydrogen, Hydrogen Sulfide, Methane, Nitrogen, Oxygen and Sulfur Dioxide in water.

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.