摘要
本文作者将原铅树实验装置的三部分[即:Cu—Na_2S(Ⅰ),Cu—不含 P_b^(2+)酸性硅胶(Ⅱ),Cu—含 P_b^(2+)酸性硅胶(Ⅲ)]分别组成Ⅰ—Ⅱ,Ⅱ—Ⅲ,Ⅰ—Ⅲ三个原电池,通过测定各电极电势随时间的变化情况,探讨了铅树的生长机理。
The present paper introduces a method of making three galvanic bat- ter'es,i.e.Ⅰ—Ⅱ,Ⅱ—Ⅲ and Ⅰ—Ⅲ,out of three original sections of ex- perimental apparatus.[(Ⅰ)Cu-Na_2S,(Ⅱ)Cu-acidic silica-gel without P_b^(2+) and (Ⅲ)Cu-acidic silica-gel with P_b^(2+) respectively].By measu- ring each electrode potential which varies with time,the growing me- chanism of“lead tree”is discussed.
关键词
铅树
生长机理
化学实验
电动势
lead tree
electrode potential
growing mechanism
experiment
