| 水的离子积pKw=f(T.P)计算公式 |
| A PRACTICAL FORMULA FOR WATER IONIC PRODUCT PKw= f(T.P) |
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| 摘要: 本文在系统地研究了国内外水的离子积计算公式基础上,根据化学热力学理论,提出临界区和超临界区水的离子积pKW=f(T.P)计算公式。与Sweeton实验值比较,0°～300℃pKW平均偏差0.008;0°～300℃,1—1000bar pKW计算值接近Marshall公式的计算值,但比它实用。同时,可以导出pKW=f(T)pKW=f(T.ρ)类型的计算公式。 |
| 关键词: 水的离子积 化学热力学 Gibbs自由能 热容 |
| 基金项目: |
| Abstract: In this paper an adapted and more practical formula for the water ionic product pKw = f(T.P) in critical and above-critical zones has been put forward, which is based on the systematical study no the existing formulae and on the chemical thermodynamical theory. Compared with Sweeton's experimental pKw value under 0-300℃, the average deviation of the pKw value obtained by the adapted formula is 0.008, which is close to that by Marshall's formula under 0-300℃ and 1-1000 bar. From this formula, other relevant ones for pKw = f(T), pKw = f(T.p) can also be derived. |
| Keywords: water ionic product chemical thermodynamics Gibbs free energy thermal capacitance |
| 投稿时间：1987-02-21 |
| 摘要点击次数: 2035 |
| 全文下载次数: 1384 |
| 傅培鑫.水的离子积pKw=f(T.P)计算公式[J].无机化学学报,1988,4(1):115-119. |
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