Polar Gases

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Juan I. Pardo - One of the best experts on this subject based on the ideXlab platform.

  • solubility of Gases in fluoroorganic alcohols part iii solubilities of several non Polar Gases in water 1 1 1 3 3 3 hexafluoropropan 2 ol at 298 15 k and 101 33 kpa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, Elisa Langa, Eduardo Pérez, Jose F Martinezlopez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

  • Solubility of Gases in fluoroorganic alcohols. Part III. Solubilities of several non-Polar Gases in water + 1,1,1,3,3,3-hexafluoropropan-2-ol at 298.15 K and 101.33 kPa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, José F. Martínez-lópez, Elisa Langa, Eduardo Pérez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

  • Solubility of 13 non-Polar Gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, CH4, C2H4, C2H6, CF4 and SF6) in 2-methyltetrahydrofuran at 273.15 to 303.15 K and 101.33 kPa partial pressure of gas
    Fluid Phase Equilibria, 1993
    Co-Authors: F. Gibanel, María C. López, Félix M. Royo, Juan I. Pardo, José S. Urieta
    Abstract:

    Abstract Gibanel, F., Lopez, M.C., Royo, F.M., Pardo, J. and Urieta, J.S., 1993. Solubility of 13 non-Polar Gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, CH4, C2H4, C2H6, CF4 and SF6) in 2-methyltetrahydrofuran at 273.15 to 303.15 K and 101.33 kPa partial pressure of gas. Fluid Phase Equilibria, 87: 285-294. Solubility measurements of several non-Polar Gases (He, Ne, Ar, Kr, Xe, H2, D2, N2, CH4, C2H4, C2H6, CF4 and SF6) in 2-methyltetrahydrofuran in the temperature range 273.15–303.15 K and at 101.33 kPa partial pressure of gas are reported. Standard changes in thermodynamic functions for the solution process (Gibbs energies, enthalpies and entropies) at 298.15 K are evaluated from experimental solubilities and their variation with temperature. Lennard-Jones 6,12 pair potential parameters and the temperature dependence on effective hard-sphere diameter for 2-methyltetrahydrofuran are estimated using the scaled particle theory applied to gas-liquid solubility. Experimental solubilities as mole fractions are compared with calculated values using this theory.

Ana M. Mainar - One of the best experts on this subject based on the ideXlab platform.

  • solubility of Gases in fluoroorganic alcohols part iii solubilities of several non Polar Gases in water 1 1 1 3 3 3 hexafluoropropan 2 ol at 298 15 k and 101 33 kpa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, Elisa Langa, Eduardo Pérez, Jose F Martinezlopez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

  • Solubility of Gases in fluoroorganic alcohols. Part III. Solubilities of several non-Polar Gases in water + 1,1,1,3,3,3-hexafluoropropan-2-ol at 298.15 K and 101.33 kPa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, José F. Martínez-lópez, Elisa Langa, Eduardo Pérez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

Elisa Langa - One of the best experts on this subject based on the ideXlab platform.

  • solubility of Gases in fluoroorganic alcohols part iii solubilities of several non Polar Gases in water 1 1 1 3 3 3 hexafluoropropan 2 ol at 298 15 k and 101 33 kpa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, Elisa Langa, Eduardo Pérez, Jose F Martinezlopez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

  • Solubility of Gases in fluoroorganic alcohols. Part III. Solubilities of several non-Polar Gases in water + 1,1,1,3,3,3-hexafluoropropan-2-ol at 298.15 K and 101.33 kPa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, José F. Martínez-lópez, Elisa Langa, Eduardo Pérez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

Eduardo Pérez - One of the best experts on this subject based on the ideXlab platform.

  • solubility of Gases in fluoroorganic alcohols part iii solubilities of several non Polar Gases in water 1 1 1 3 3 3 hexafluoropropan 2 ol at 298 15 k and 101 33 kpa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, Elisa Langa, Eduardo Pérez, Jose F Martinezlopez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

  • Solubility of Gases in fluoroorganic alcohols. Part III. Solubilities of several non-Polar Gases in water + 1,1,1,3,3,3-hexafluoropropan-2-ol at 298.15 K and 101.33 kPa
    The Journal of Chemical Thermodynamics, 2012
    Co-Authors: Ana M. Mainar, José F. Martínez-lópez, Elisa Langa, Eduardo Pérez, Juan I. Pardo
    Abstract:

    Abstract Solubilities of the non-Polar Gases H2, N2, O2, CH4, C2H6, C2H4, CF4, SF6, and CO2 in the mixture (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at the temperature of 298.15 K and 101.33 kPa partial pressure of gas are reported. A polynomial dependence of the solubilities on the molar fraction of the binary liquid mixture is found. The Henry’s constants at the vapor pressure of water, the standard changes in the Gibbs energy for the solution process and for the solvation process, and the so-called excess Henry’s constant are calculated. The results have been compared with those obtained by Scaled Particle Theory (SPT). A method to compare the solubility of a gas in different liquids is proposed and applied to 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoropropan-2-ol.

G Hummer - One of the best experts on this subject based on the ideXlab platform.

  • Temperature dependence of the solubility of non-Polar Gases in water.
    Biophysical chemistry, 1999
    Co-Authors: S Garde, A E García, L R Pratt, G Hummer
    Abstract:

    An explanation is provided for the experimentally observed temperature dependence of the solubility and the solubility minimum of non-Polar Gases in water. The influence of solute size and solute-water attractive interactions on the solubility minimum temperature is investigated. The transfer of a non-Polar solute from the ideal gas into water is divided into two steps: formation of a cavity in water with the size and shape of the solute and insertion of the solute in this cavity which is equivalent to 'turning on' solute-water attractive interactions. This two step process divides the excess chemical potential of the non-Polar solute in water into repulsive and attractive contributions, respectively. The reversible work for cavity formation is modeled using an information theory model of hydrophobic hydration. Attractive contributions are calculated by modeling the water structure in the vicinity of non-Polar solutes. These models make a direct connection between microscopic quantities and macroscopic observables. Moreover, they provide an understanding of the peculiar temperature dependences of the hydration thermodynamics from properties of pure water; specifically, bulk water density and the water oxygen-oxygen radial distribution function.