Densities, Specific Heat Capacities, Apparent and Partial Molar Volumes and Heat Capacities of Glycine in Aqueous Solutions of Formamide, Acetamide, and N,N-Dimethylacetamide at T=298.15 K and Ambient Pressure

2010 ◽  
Vol 39 (6) ◽  
pp. 877-896 ◽  
Author(s):  
Mohammad M. H. Bhuiyan ◽  
Andrew W. Hakin ◽  
Jin Lian Liu
Keyword(s):  
Aqueous Solutions ◽  
Specific Heat ◽  
Ambient Pressure ◽  
Partial Molar Volumes ◽  
Heat Capacities ◽  
Molar Volumes ◽  
Specific Heat Capacities

Densities and apparent molar volumes of aqueous aluminum chloride. Analysis of apparent molar volumes and heat capacities of aqueous aluminum salts in terms of the Pitzer and Helgeson theoretical models

1986 ◽  
Vol 64 (2) ◽  
pp. 353-359 ◽  
Author(s):  
Leslie Barta ◽  
Loren G. Hepler
Keyword(s):  
Aqueous Solutions ◽  
Interaction Model ◽  
Partial Molar Volumes ◽  
Theoretical Models ◽  
Heat Capacities ◽  
Apparent Molar Volumes ◽  
Standard State ◽  
Apparent Molar Heat Capacities ◽  
Molar Volumes ◽  
Aqueous Aluminum

Densities of aqueous solutions of AlCl3 (containing dilute HCl) have been measured at 10, 25, 40, and 55 °C with results that have led to defined apparent molar volumes. We have used the Pitzer ion interaction model as the basis for analyzing these apparent molar volumes to obtain standard state (infinite dilution) partial molar volumes of AlCl3(aq) at each temperature. We have also made similar use of apparent molar heat capacities of aqueous solutions of AlCl3–HCl and Al(NO3)3–HNO3 from Hovey and Tremaine to obtain standard state partial molar heat capacities of AlCl3(aq) and Al(NO3)3(aq) at these same temperatures. Finally, the standard state partial molar volumes and heat capacities have been used with the Helgeson–Kirkham semi-theoretical equation of state for aqueous ions to provide a basis for estimating the thermodynamic properties of Al3+(aq) at high temperatures and pressures.

scholarly journals Determination of the Specific Heat Capacities of Aqueous Solutions of Pentose

1981 ◽  
Vol 54 (8) ◽  
pp. 2282-2285 ◽  
Author(s):  
Fumio Kawaizumi ◽  
Shigemi Kushida ◽  
Yutaka Miyahara
Keyword(s):  
Aqueous Solutions ◽  
Specific Heat ◽  
Heat Capacities ◽  
Specific Heat Capacities

scholarly journals Solution thermodynamics of aqueous nicotinic acid solutions in presence of tetrabutylammonium hydrogen sulphate

2013 ◽  
Vol 78 (8) ◽  
pp. 1225-1240 ◽  
Author(s):  
Abhijit Sarkar ◽  
Biswajit Sinha
Keyword(s):  
Aqueous Solutions ◽  
Nicotinic Acid ◽  
Ambient Pressure ◽  
Activation Parameters ◽  
Partial Molar Volumes ◽  
State Theory ◽  
Group Interactions ◽  
Molar Volumes ◽  
Solvent Interactions ◽  
Hydrogen Sulphate

In this study we investigated the effects of tetrabutylammonium hydrogen sulphate (Bu4NHSO4) on the solute-solute and solute-solvent interactions in the aqueous solutions of nicotinic acid in terms of apparent molar volumes (?V), standard partial molar volumes (?V0) and viscosity B-coefficients at 298.15, 308.15, and 318.15 K under ambient pressure. These interactions are further discussed in terms of ion-dipolar, hydrophobic- hydrophobic, hydrophilic-hydrophobic group interactions. The activation parameters of viscous flow for Bu4NHSO4 in the aqueous solutions of nicotinic acid were discussed in terms of transition state theory. The overall results indicated that ion-hydrophilic and hydrophilic-hydrophilic group interactions are predominant in the aqueous solutions of nicotinic acid and Bu4NHSO4 has a dehydration effect on the hydrated nicotinic acid.

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