(单选题)一个烧杯中,盛有某种溶胶20×10-6m3,如使其聚沉,至少需浓度为1000mol/m3的NaCl溶液20×10-6m3,或浓度为1 mol/m3的Na2S04溶液100×10-6m3,由这些数据得出的结论是:( ) -题库考试答案搜索网

(单选题)一个烧杯中,盛有某种溶胶20×10-6m3,如使其聚沉,至少需浓度为1000mol/m3的NaCl溶液20×10-6m3,或浓度为1 mol/m3的Na2S04溶液100×10-6m3,由这些数据得出的结论是:( )

单选题

2021-09-01 16:02

A、溶胶带正电,NaCl的聚沉值比Na2S04的聚沉值小
B、溶胶带负电,NaCl的聚沉值比Na2S04的聚沉值大
C、溶胶带正电,NaCl的聚沉值比Na2S04的聚沉值大
D、溶胶带正电,NaCl的聚沉能力比Na2S04的聚沉能力强

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正确答案

C

试题解析

标签：青书学堂西安石油大学胶体与界面化学

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