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在混合溶剂中恒定乙醇的质量百分数x=10％,应用电动势法测定了无液接电池(A)和电池(B)的电动势。根据电池(A)和电池(B)的电动势,用传统的Debye-Huckel外推法和我们在前文提出的多项式逼近程序,确定了甘氨酸在278.15—318.15 K范围内5个温度下的第一、第二热力学解离常数,两种方法所得的结果在实验误差范围内一致。并相应计算了该体系的热力学量。
The mass percent of constant ethanol in the mixed solvent, x = 10%, was determined by electromotive force method without the electromotive force of the battery (A) and the battery (B). Based on the electromotive force of the battery (A) and the battery (B), the conventional Debye-Huckel extrapolation method and the polynomial approximation procedure we proposed earlier were used to determine the first, second and third highest values of glycine at 5 temperatures in the range of 278.15-318.15 K, The second thermodynamic dissociation constant, the results obtained by the two methods in the experimental error range. The thermodynamic quantities of this system are calculated accordingly.