摘要
经典的拉脱法测定液体表面张力系数实验中,我们改变实验的液体和拉起液体框的形状,以此探讨不同液体和不同浓度液体的表面张力系数.实验表明,用圆环测得液体表面张力系数比用门形框准确;蔗糖和盐水的液体表面张力系数均随溶液浓度增大而增大,呈近似线性关系.酒精则随浓度的增大而减小,呈近似对数关系.
In the classical experiment for determining the surface tension coefficients by Pull-out method,we employ various liquid and frame with different shape to investigate the surface tension coefficients.Experiment results show that the results given by rings are more accurate than that given by fractal door.Moreover,the surface tension coefficients of the sucrose and saline increase with the solution concentration,and approximately show linear relation.However,the alcohol exhibits logarithmic relation.
出处
《湛江师范学院学报》
2009年第6期64-67,共4页
Journal of Zhanjiang Normal College
基金
湛江师范学院学生课外学术科技基金资助项目
关键词
拉脱法
液体表面张力系数
圆环
门形框
溶液浓度
Pull-out method
surface tension coefficient
ring
solution concentration
