Gas enthalpies

The fundamental issues to be addressed in the process modeling include spray enthalpy, gas consumption, spray mass distribution, microstructure of solidified droplets, and droplet-substrate interactions. The effects of atomization gas chemistry, alloy composition and operation conditions on the resultant droplet properties are also to be investigated in the process modeling. [Pg.349]

Notably, pKa values pertaining to solution equilibria are not usually distorted by special solvation effects. The same acidity order for 4-substituted pyridinium ions is found in the gas phase. In fact, a linear free energy (aqueous solution)-enthalpy (gas phase) relationship exists substituent effects are 3.5 times larger in the gas phase. In other words, the aqueous solvent, relative to the gas phase, attenuates the effect of substituents by its higher dielectric constant and by hydrogen bonding.52... [Pg.80]

Figure 6-23. Concentration of nitrogen oxides generated in thermal air plasma with surface quenching as a function of flow enthalpy. Gas pressure 1 atm triangles correspond to experimental installation, circles to industrial installation.

Translational Enthalpy Rotational Enthalpy Vibrational Enthalpy gas constant (RT) Translational Entropy Rotational Entropy Vibrational Entropy ... [Pg.340]

The computation of pure-component and mixture enthalpies is implemented by FORTRAN IV subroutine ENTH, which evaluates the liquid- or vapor-phase molar enthalpy for a system of up to 20 components at specified temperature, pressure, and composition. The enthalpies calculated are in J/mol referred to the ideal gas at 300°K. Liquid enthalpies can be determined either with... [Pg.93]

ENTH calculates vapor or liquid enthalpies, J/mole, (reference, ideal gas at 300 K) for a mixture of N components (N <... [Pg.295]

ENTH CALCULATES VAPOR OR LIQUID ENTHALPIES (REF IDEAL GAS AT 300 K1 H... [Pg.296]

The thermal properties of an ideal gas, enthalpy, entropy and specific heat, can be estimated using the method published by Rihani and Doraiswamy in 1965 ... [Pg.90]

Coefficients of Rihani s and Doraiswamy s method (1965) for calculating enthalpy, entropy, and the for an ideal gas. [Pg.91]

Each fluid is described by a BWR equation of state whose coefficients are adjusted to obtain simultaneously the vapor pressure, enthalpies of liquid and gas as well as the compressibilities. The compressibility z of any fluid is calculated using the equation below ... [Pg.119]

The principle of corresponding states enables the enthalpy of a liquid mixture to be expressed starting from that of an ideal gas mixture and a reduced correction for enthalpy ... [Pg.124]

The Cpg is expressed as the derivative of the enthalpy with respect to temperature at constant pressure. For an ideal gas it is a total derivative ... [Pg.138]

The enthalpy of pure hydrocarbons In the ideal gas state has been fitted to a fifth order polynomial equation of temperature. The corresponding is a polynomial of the fourth order ... [Pg.138]

Hgp = specific enthalpy of the ideal gas Cpgp = specific heat of the ideal gas... [Pg.139]

The specific enthalpy of a gas is calculated using the principle of corresponding states. The enthalpy of a gas mixture is equal to the sum of the ideal gas enthalpy and a correction term ... [Pg.141]

For petroleum fractions, there is a problem of coherence between the expression for liquid enthalpy and that of an ideal gas. When the reduced temperature is greater than 0.8, the liquid enthalpy is calculated starting with the enthalpy of the ideal gas. On the contrary, when the reduced temperature is less than 0.8, it is preferable to calculate the enthalpy of the ideal gas starting with the enthalpy of the liquid (... [Pg.141]

Hgp = enthalpie of the component i in the ideal gas state Xw = weight fraction of the component i... [Pg.142]

Coefficients for calculation of the enthalpy of an ideal gas (equation 4.77) for common light components. [Pg.418]

Gibbs free energy or Gibbs molar free energy molar flow of gas phase acceleration of gravity enthalpy, molar enthalpy, weight enthalpy Henry s constant Planck s constant height horsepower radiation intensity molar flux... [Pg.494]

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