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Citation: Cheng Zhihua*, Li Han, Zhang Litian, Yang Jiazhen, Liang Chunyu. THE DETERMINATION OF STANDARD ELECTROMOTIVE FORCE OF CELL Cu|CuSO₄|Hg₂SO₄-Hg AT DIFFERENT TEMPERATURES[J]. Acta Physico-Chimica Sinica, ;1989, 5(05): 590-593. doi: 10.3866/PKU.WHXB19890516 shu

THE DETERMINATION OF STANDARD ELECTROMOTIVE FORCE OF CELL Cu|CuSO₄|Hg₂SO₄-Hg AT DIFFERENT TEMPERATURES

1.
Changchun Institute of Applied Chemistry; Academia Sinica; Department of Chemistry; LiaoNing Universty; Shenyang

Received Date: 30 November 1987
Available Online: 15 October 1989

The emfs of Cu|CuSO_4|Hg_2SO_4-Hg were determined at 5 temperature points from 278.15 K to 313.15 K. Based on the Pitzer' s Equation a polynomial approximation for the determination of standard emf, E_m, was proposed. The values of E_m obtained by author's method agree with values of E_m obtained by the extended Debye-Huckel equation within experimental errors. Compared with the extrapolation result of extended Debye-Huckel equation, the uncertainty by the selecting of parameter of ion size was avoided. By the use of polynomial approximation method the standard emf's for different type cells in the literature were also determinded. The results were more satisfactary.
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THE DETERMINATION OF STANDARD ELECTROMOTIVE FORCE OF CELL Cu|CuSO4|Hg2SO4-Hg AT DIFFERENT TEMPERATURES

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通讯作者: 陈斌, bchen63@163.com

THE DETERMINATION OF STANDARD ELECTROMOTIVE FORCE OF CELL Cu|CuSO₄|Hg₂SO₄-Hg AT DIFFERENT TEMPERATURES