The enthalpies of dilution of L serine in ethanol water mixtures (with 0.05 increments ranging from 0.05 to 0.40 ethanol by weight) have been measured with LKB 2277 Bio Activity Monitor at 298.15 K.Calculations show t...The enthalpies of dilution of L serine in ethanol water mixtures (with 0.05 increments ranging from 0.05 to 0.40 ethanol by weight) have been measured with LKB 2277 Bio Activity Monitor at 298.15 K.Calculations show that the value of pairwise enthalpic interaction coefficients h2 is negative and minimized at 0.25 ethanol in mixtures.展开更多
The emf of cell（A）without liquid junction was determined with 10%mass%urea-water mixed solvent in the temperature range 278.15-318.15K: Pt,H2（101.325KPa） HCl（ml）,H2SO4（m2）,urea（10%）-H2O AgCl-Ag Then,accordin...The emf of cell（A）without liquid junction was determined with 10%mass%urea-water mixed solvent in the temperature range 278.15-318.15K: Pt,H2（101.325KPa） HCl（ml）,H2SO4（m2）,urea（10%）-H2O AgCl-Ag Then,according to the emf data of cell,the second dissociation constant K2 of sulfuric acid in the mixed solvent was determined. The thermodynamic quatlities of the second dissociation process of sulfuric acid and the effect of solvent dielectric constant on K2 were discussed.展开更多
文摘The enthalpies of dilution of L serine in ethanol water mixtures (with 0.05 increments ranging from 0.05 to 0.40 ethanol by weight) have been measured with LKB 2277 Bio Activity Monitor at 298.15 K.Calculations show that the value of pairwise enthalpic interaction coefficients h2 is negative and minimized at 0.25 ethanol in mixtures.
文摘The emf of cell（A）without liquid junction was determined with 10%mass%urea-water mixed solvent in the temperature range 278.15-318.15K: Pt,H2（101.325KPa） HCl（ml）,H2SO4（m2）,urea（10%）-H2O AgCl-Ag Then,according to the emf data of cell,the second dissociation constant K2 of sulfuric acid in the mixed solvent was determined. The thermodynamic quatlities of the second dissociation process of sulfuric acid and the effect of solvent dielectric constant on K2 were discussed.
