【摘要】 本文用Uematsu和Franck提出的水的介电常数方程及Haar,Gallagher和Kell提出的水的热力学性质方程,对水在0～350℃,0.1～1000bar范围内渗透系数、表观摩尔焓、表观摩尔热容、表观摩尔体积、表观压缩系数和表观膨胀系数的Pitzer-Debye-Huckel极限梯度进行了计算,并且采用最小二乘曲面拟合方法,得出了各种极限梯度的拟合多项式,用于计算和预报不同温度和压力下的极限梯度值。更多还原

【Abstract】 The Pitzer-Debye-Huckel limiting slopes for osmotic coefficients, apparant molal enthalpy, apparant heart capacities, apparant molal volumes, apparant molal compresibilities and apparant molal extensivities of water from 0 to 350 C and from 0. 1000 bar to lK bar are calculated by using internationally recognized critical evaluations for the dielectric constant of water by Uematsu and Frank and the thermodynamic property equation of water by Hear, Gallagher and Kell. The generalized equations for calculating the Pitzer-Debye-Huckel limiting slopes are derived based on least-squares camber fitting. The values of slopes are thus predicted.更多还原