The standard electromotive forces of the reversible cells consisted of the Corning monovalent general cation selective electrode (M + ISE) and chloride selective electrode (Cl ISE), namely Cl --ISE|RbCl( m ),H 2O(1- ...The standard electromotive forces of the reversible cells consisted of the Corning monovalent general cation selective electrode (M + ISE) and chloride selective electrode (Cl ISE), namely Cl --ISE|RbCl( m ),H 2O(1- x ),DMF( x )|M +-ISE have been measured, and the standard free energies of transfer(Δ S t ) of RbCl from H 2O to mixtures of H 2O DMF have been calculated, the standard transfer entropies(Δ S t ) have been also calculated from temperature coefficients of Δ G t of RbCl at seven temperatures from 283.15 K to 318.15 K. The behavior of change of Δ S t of RbCl with experimental temperature and mole fraction ( x ) of DMF in the mixed solvents and its influence on the structure of the mixed solvents were discussed on the basis of solvation theory ofelectrolyte solution.展开更多
文摘The standard electromotive forces of the reversible cells consisted of the Corning monovalent general cation selective electrode (M + ISE) and chloride selective electrode (Cl ISE), namely Cl --ISE|RbCl( m ),H 2O(1- x ),DMF( x )|M +-ISE have been measured, and the standard free energies of transfer(Δ S t ) of RbCl from H 2O to mixtures of H 2O DMF have been calculated, the standard transfer entropies(Δ S t ) have been also calculated from temperature coefficients of Δ G t of RbCl at seven temperatures from 283.15 K to 318.15 K. The behavior of change of Δ S t of RbCl with experimental temperature and mole fraction ( x ) of DMF in the mixed solvents and its influence on the structure of the mixed solvents were discussed on the basis of solvation theory ofelectrolyte solution.