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在680°—780℃,Pb—Bi合金组成在N_(Pb)=0.098—0.893范围内,在惰性气氛下,测定了电极浓差电池Pb_(液)|PbCl_2在NaCl+KCl_(共晶液)中|Pb—Bi_(液)的电动势。由测得数据计算了合金组分铅和铋的活度及铅的偏克分子变量。同时对此合金的性质作了讨论,指出:合金中的二组分均对拉乌尔定律呈现负偏差;但可以认为遵守规则溶液规律。对实验方法等问题也作了一些讨论。
At 680-780 ℃, the composition of Pb-Bi alloy is in the range of N Pb (Pb) = 0.098-0.893, and the concentration of Pb_ (liquid) PbCl_2 in NaCl + KCl_ (eutectic) In | Pb-Bi_ (liquid) electromotive force. The activity of lead and bismuth and the molecular weight of lead were calculated from the measured data. At the same time, the properties of the alloy are discussed. It is pointed out that the two components in the alloy all show negative deviation to Raoult’s law. However, it can be considered that the rules of the solution are obeyed. On the experimental methods and other issues also made some discussion.