跪求中文翻译英文!!

来源:百度知道 编辑:UC知道 时间:2024/05/03 19:50:15
研究不同温度下醇的纯液体的表面张力,要选用适合纯液体表面张力的测定方法:毛细管上升法,威廉米吊片法,环法或者泡压法。其中威廉米吊片法是最常用,且较为准确的方法。本实验用基于威廉米吊片法原理的全自动表面张力仪(BZY-1)对甲醇,无水乙醇, 1-丙醇,1-丁醇,1-戊醇,1-庚醇这六种醇在20°C~60°C的温度范围内进行其表面张力数值的测定。之后根据测量数据,作出以下趋势图:每一种醇的表面张力随温度变化曲线图,醇系列在不同温度下表面张力随温度变化的趋势图,相同温度下醇类表面张力排布趋势以及醇类表面张力随温度变化趋势与醇类密度随温度变化趋势的对比。通过对图的分析,归纳醇类表面张力随温度变化的情况,以及由温度引起的醇类表面张力的变化与醇类密度随温度变化二者的相关性。
结果表明,这六种醇在20°C~60°C的温度范围内:每一种醇的纯液体表面张力的随温度的升高而呈直线下降现象;相同温度下,醇表面张力的大小依次为乙醇<甲醇< 1-丙醇< 1-丁醇< 1-戊醇< 1-庚醇;醇类密度随温度的变化趋势和醇类表面张力随温度的变化趋势极相同。

关键词:伯醇;纯液体;表面张力;温度的影响

Study the different temperature the surface tension of the pure liquid of the 醇 , to choose to use in keeping with pure the measurement method of the liquid surface tension:The capillary rises the method, William's rice hangs a slice of method, the wreath method or the bubble presses the method.Among them, William's rice hangs a slice of method is the most in common use, and more accurate method.This experiment use according to the full-automatic surface tension instrument( BZY-1) that William's rice hangs a slice of method principle to methyl alcohol, have no ether of water,1- C 醇 ,1- the D 醇 ,1- E 醇 ,1- these six kinds of 醇s of G 醇s carry on the measurement of its surface tension number within the scope of 20 ° Cs~60 the temperature of the ° C.After according to the diagraph data, make a following trend diagram:Each surface tension of 醇 changes the curve diagram with the temperature, the series of 醇 is under the different temperature surface tension with the trend di