The van der Waals constants for more than 200 gases used to correct for non-ideal behavior of gases caused by intermolecular forces and the volume occupied by the gas particles. Non-ideal gas - Van der Waal's Equation and Constants TemperatureĮnthalpy, internal energy and entropy of Nitrogen as an ideal gas. Nitrogen - Enthalpy, Internal Energy and Entropy vs. Mole fraction of water vapor is the ratio of water molecules to air and water molecules. Pressure, temperature and volume in a perfect ideal gas like moist air (air with water vapor). Ratios of specific heat for gases with constant pressure and volume processes. Molar specific heats for some common gases at constant volume. Gas mixtures and the ideal gas law, mass calculations, the individual gas constant and density.Ībsolute (dynamic) viscosities of some common gases. Thermodynamic properties of dry air - specific heat, ratio of specific heats, dynamic viscosity, thermal conductivity, Prandtl number, density and kinematic viscosity at temperatures ranging 175 - 1900 K.Ĭhemical, physical and thermal properties of ethylene, also called ethene, acetene and olefiant gas. Phase diagram included.ĭry Air - Thermodynamic and Physical Properties Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more.Ĭhemical, physical and thermal properties of benzene, also called benzol. Phase diagram included.ĭry air is a mixture of gases where the average molecular weight (or molar mass) can be calculated by adding the weight of each component.
Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.Ĭhemical, physical and thermal properties of acetone, also called 2-propanone, dimethyl ketone and pyroacetic acid. Involving velocity, pressure, density and temperature as functions of space and time.Īir, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves. Moist and humid air - psychrometric charts, Mollier diagrams, air-condition temperatures and absolute and relative humidity and moisture content. A Mixture of Gases - Properties of mixtures of gases. The Ideal Gas Law - Gases are highly compressible with changes in density directly related to changes in temperature and pressure.
M i = the molar mass of each gas The Universal Gas Constant - R u - in alternative Units The average molecular weight of a gas mixture is equal to the sum of the mole fractions of each gas multiplied by the molecular weight of that particular gas: N A = Avogadro Number = 6.022 x 10 23 The Molecular weight of a Gas Mixture K = Boltzmann's constant = 1.381 x 10 -23 The universal gas constant can be defined in terms of Boltzmann's constant k as: R u = M gas R The Universal Constant defined in Terms of the Boltzmann's Constant The Universal Gas Constant - R u - appears in the ideal gas law and can be expressed as the product between the Individual Gas Constant - R - for the particular gas - and the Molecular Weight - M gas - for the gas, and is the same for all ideal or perfect gases:
#AIRGAS LIQUID NITROGEN FULL#
Unit conversion: 1 J/kg K = 5.97994 ft lb/slug °R, and 1 ft lb/slug °R = 0.167226 J/kg K.įor full table - rotate the screen! Individual Gas Constants Gas In the SI system the most common units are J/kg K. In the imperial system the most common units for the individual gas constant are ft lb/slug oR. The induvidual gas constant, R, for a gas can be calculated from the universal gas constant, R u ( given in several units below), and the gas molecular weight, M gas:
The Individual Gas Constant depends on the particular gas and is related to the molecular weight of the gas. The Universal and Individual Gas Constants are known from the Ideal Gas Law.
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